161625112 has 32 divisors (see below), whose sum is σ = 336027600. Its totient is φ = 72259200.

The previous prime is 161625097. The next prime is 161625119. The reversal of 161625112 is 211526161.

It is a happy number.

161625112 is digitally balanced in base 3, because in such base it contains all the possibile digits an equal number of times.

It is a super-2 number, since 2×161625112² = 52245353658025088, which contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (161625119) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 9687 + ... + 20422.

Almost surely, 2^161625112 is an apocalyptic number.

It is an amenable number.

161625112 is an abundant number, since it is smaller than the sum of its proper divisors (174402488).

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

161625112 is a wasteful number, since it uses less digits than its factorization.

161625112 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 30187 (or 30183 counting only the distinct ones).

The product of its digits is 720, while the sum is 25.

The square root of 161625112 is about 12713.1865399671. The cubic root of 161625112 is about 544.7153489271.

The spelling of 161625112 in words is "one hundred sixty-one million, six hundred twenty-five thousand, one hundred twelve".