32130172 has 12 divisors (see below), whose sum is σ = 58672656. Its totient is φ = 15366560.

The previous prime is 32130143. The next prime is 32130193. The reversal of 32130172 is 27103123.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 174529 + ... + 174712.

It is an arithmetic number, because the mean of its divisors is an integer number (4889388).

Almost surely, 2^32130172 is an apocalyptic number.

It is an amenable number.

32130172 is a deficient number, since it is larger than the sum of its proper divisors (26542484).

32130172 is a wasteful number, since it uses less digits than its factorization.

32130172 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 349268 (or 349266 counting only the distinct ones).

The product of its (nonzero) digits is 252, while the sum is 19.

The square root of 32130172 is about 5668.3482602959. The cubic root of 32130172 is about 317.9101179198.

Adding to 32130172 its reverse (27103123), we get a palindrome (59233295).

The spelling of 32130172 in words is "thirty-two million, one hundred thirty thousand, one hundred seventy-two".