161031192 has 32 divisors (see below), whose sum is σ = 460089600. Its totient is φ = 46008864.

The previous prime is 161031179. The next prime is 161031209. The reversal of 161031192 is 291130161.

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 7 ways as a sum of consecutive naturals, for example, 479092 + ... + 479427.

It is an arithmetic number, because the mean of its divisors is an integer number (14377800).

Almost surely, 2^161031192 is an apocalyptic number.

161031192 is a gapful number since it is divisible by the number (12) formed by its first and last digit.

It is an amenable number.

161031192 is an abundant number, since it is smaller than the sum of its proper divisors (299058408).

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

161031192 is a wasteful number, since it uses less digits than its factorization.

161031192 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 958535 (or 958531 counting only the distinct ones).

The product of its (nonzero) digits is 324, while the sum is 24.

The square root of 161031192 is about 12689.8066179119. The cubic root of 161031192 is about 544.0473124220.

The spelling of 161031192 in words is "one hundred sixty-one million, thirty-one thousand, one hundred ninety-two".