161395192 has 16 divisors (see below), whose sum is σ = 345846960. Its totient is φ = 69169344.

The previous prime is 161395153. The next prime is 161395193. The reversal of 161395192 is 291593161.

It is a happy number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (161395193) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 1440973 + ... + 1441084.

It is an arithmetic number, because the mean of its divisors is an integer number (21615435).

Almost surely, 2^161395192 is an apocalyptic number.

It is an amenable number.

161395192 is an abundant number, since it is smaller than the sum of its proper divisors (184451768).

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

161395192 is a wasteful number, since it uses less digits than its factorization.

161395192 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2882070 (or 2882066 counting only the distinct ones).

The product of its digits is 14580, while the sum is 37.

The square root of 161395192 is about 12704.1407422934. The cubic root of 161395192 is about 544.4569311897.

The spelling of 161395192 in words is "one hundred sixty-one million, three hundred ninety-five thousand, one hundred ninety-two".