161432396 has 6 divisors (see below), whose sum is σ = 282506700. Its totient is φ = 80716196.

The previous prime is 161432389. The next prime is 161432431. The reversal of 161432396 is 693234161.

It is a happy number.

161432396 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 20179046 + ... + 20179053.

It is an arithmetic number, because the mean of its divisors is an integer number (47084450).

Almost surely, 2^161432396 is an apocalyptic number.

It is an amenable number.

161432396 is a deficient number, since it is larger than the sum of its proper divisors (121074304).

161432396 is a wasteful number, since it uses less digits than its factorization.

161432396 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 40358103 (or 40358101 counting only the distinct ones).

The product of its digits is 23328, while the sum is 35.

The square root of 161432396 is about 12705.6049049229. The cubic root of 161432396 is about 544.4987631245.

The spelling of 161432396 in words is "one hundred sixty-one million, four hundred thirty-two thousand, three hundred ninety-six".