152420520 has 128 divisors (see below), whose sum is σ = 540691200. Its totient is φ = 33632256.

The previous prime is 152420519. The next prime is 152420531. The reversal of 152420520 is 25024251.

It is a happy number.

It is a Harshad number since it is a multiple of its sum of digits (21).

It is an unprimeable number.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 21232 + ... + 27488.

It is an arithmetic number, because the mean of its divisors is an integer number (4224150).

Almost surely, 2^152420520 is an apocalyptic number.

152420520 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 152420520, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (270345600).

152420520 is an abundant number, since it is smaller than the sum of its proper divisors (388270680).

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

152420520 is a wasteful number, since it uses less digits than its factorization.

152420520 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 6307 (or 6303 counting only the distinct ones).

The product of its (nonzero) digits is 800, while the sum is 21.

The square root of 152420520 is about 12345.8705646868. The cubic root of 152420520 is about 534.1720328326.

Adding to 152420520 its reverse (25024251), we get a palindrome (177444771).

The spelling of 152420520 in words is "one hundred fifty-two million, four hundred twenty thousand, five hundred twenty".