162147420 has 120 divisors (see below), whose sum is σ = 514217088. Its totient is φ = 42768000.

The previous prime is 162147413. The next prime is 162147443. The reversal of 162147420 is 24741261.

It is a Harshad number since it is a multiple of its sum of digits (27).

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 39 ways as a sum of consecutive naturals, for example, 163125 + ... + 164115.

Almost surely, 2^162147420 is an apocalyptic number.

162147420 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 162147420, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (257108544).

162147420 is an abundant number, since it is smaller than the sum of its proper divisors (352069668).

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

162147420 is a wasteful number, since it uses less digits than its factorization.

162147420 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1113 (or 1102 counting only the distinct ones).

The product of its (nonzero) digits is 2688, while the sum is 27.

The square root of 162147420 is about 12733.7119489959. The cubic root of 162147420 is about 545.3014856903.

Adding to 162147420 its reverse (24741261), we get a palindrome (186888681).

The spelling of 162147420 in words is "one hundred sixty-two million, one hundred forty-seven thousand, four hundred twenty".