161477912 has 16 divisors (see below), whose sum is σ = 302910000. Its totient is φ = 80701920.

The previous prime is 161477881. The next prime is 161477929. The reversal of 161477912 is 219774161.

161477912 is digitally balanced in base 3, because in such base it contains all the possibile digits an equal number of times.

It is a congruent number.

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, 25214 + ... + 30962.

It is an arithmetic number, because the mean of its divisors is an integer number (18931875).

Almost surely, 2^161477912 is an apocalyptic number.

It is an amenable number.

161477912 is a deficient number, since it is larger than the sum of its proper divisors (141432088).

161477912 is a wasteful number, since it uses less digits than its factorization.

161477912 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 9266 (or 9262 counting only the distinct ones).

The product of its digits is 21168, while the sum is 38.

The square root of 161477912 is about 12707.3959566860. The cubic root of 161477912 is about 544.5499322773.

The spelling of 161477912 in words is "one hundred sixty-one million, four hundred seventy-seven thousand, nine hundred twelve".