161903032 has 16 divisors (see below), whose sum is σ = 304781400. Its totient is φ = 80628000.

The previous prime is 161902999. The next prime is 161903069. The reversal of 161903032 is 230309161.

161903032 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a junction number, because it is equal to n+sod(n) for n = 161902988 and 161903006.

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, 38307 + ... + 42322.

Almost surely, 2^161903032 is an apocalyptic number.

It is an amenable number.

161903032 is a deficient number, since it is larger than the sum of its proper divisors (142878368).

161903032 is a wasteful number, since it uses less digits than its factorization.

161903032 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 80886 (or 80882 counting only the distinct ones).

The product of its (nonzero) digits is 972, while the sum is 25.

The square root of 161903032 is about 12724.1122283639. The cubic root of 161903032 is about 545.0273891350.

The spelling of 161903032 in words is "one hundred sixty-one million, nine hundred three thousand, thirty-two".