161402632 has 16 divisors (see below), whose sum is σ = 313065900. Its totient is φ = 77918400.

The previous prime is 161402629. The next prime is 161402651. The reversal of 161402632 is 236204161.

161402632 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It can be written as a sum of positive squares in 2 ways, for example, as 157101156 + 4301476 = 12534^2 + 2074^2 .

It is a junction number, because it is equal to n+sod(n) for n = 161402597 and 161402606.

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, 347619 + ... + 348082.

Almost surely, 2^161402632 is an apocalyptic number.

It is an amenable number.

161402632 is a deficient number, since it is larger than the sum of its proper divisors (151663268).

161402632 is a wasteful number, since it uses less digits than its factorization.

161402632 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 695736 (or 695732 counting only the distinct ones).

The product of its (nonzero) digits is 1728, while the sum is 25.

The square root of 161402632 is about 12704.4335568336. The cubic root of 161402632 is about 544.4652971913.

Adding to 161402632 its reverse (236204161), we get a palindrome (397606793).

The spelling of 161402632 in words is "one hundred sixty-one million, four hundred two thousand, six hundred thirty-two".