162125520 has 80 divisors (see below), whose sum is σ = 504854592. Its totient is φ = 43038720.

The previous prime is 162125497. The next prime is 162125543. The reversal of 162125520 is 25521261.

It is a happy number.

162125520 is digitally balanced in base 2 and base 3, because in such bases it contains all the possibile digits an equal number of times.

It is an interprime number because it is at equal distance from previous prime (162125497) and next prime (162125543).

It is a tau number, because it is divible by the number of its divisors (80).

It is a super-4 number, since 4×162125520⁴ (a number of 34 digits) contains 4444 as substring.

It is a Harshad number since it is a multiple of its sum of digits (24).

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 56439 + ... + 59241.

Almost surely, 2^162125520 is an apocalyptic number.

162125520 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 162125520, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (252427296).

162125520 is an abundant number, since it is smaller than the sum of its proper divisors (342729072).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

162125520 is a wasteful number, since it uses less digits than its factorization.

162125520 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3060 (or 3054 counting only the distinct ones).

The product of its (nonzero) digits is 1200, while the sum is 24.

The square root of 162125520 is about 12732.8519978833. The cubic root of 162125520 is about 545.2769346980.

Adding to 162125520 its reverse (25521261), we get a palindrome (187646781).

The spelling of 162125520 in words is "one hundred sixty-two million, one hundred twenty-five thousand, five hundred twenty".