161524928 has 28 divisors (see below), whose sum is σ = 337398360. Its totient is φ = 76511232.

The previous prime is 161524907. The next prime is 161524963. The reversal of 161524928 is 829425161.

It is a Harshad number since it is a multiple of its sum of digits (38).

It is a junction number, because it is equal to n+sod(n) for n = 161524891 and 161524900.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 65201 + ... + 67632.

Almost surely, 2^161524928 is an apocalyptic number.

It is an amenable number.

161524928 is an abundant number, since it is smaller than the sum of its proper divisors (175873432).

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

161524928 is a wasteful number, since it uses less digits than its factorization.

161524928 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 132864 (or 132854 counting only the distinct ones).

The product of its digits is 34560, while the sum is 38.

The square root of 161524928 is about 12709.2457683373. The cubic root of 161524928 is about 544.6027776374.

The spelling of 161524928 in words is "one hundred sixty-one million, five hundred twenty-four thousand, nine hundred twenty-eight".