32129985 has 16 divisors (see below), whose sum is σ = 52133760. Its totient is φ = 16894080.

The previous prime is 32129959. The next prime is 32130013. The reversal of 32129985 is 58992123.

It is not a de Polignac number, because 32129985 - 2¹⁵ = 32097217 is a prime.

It is a super-2 number, since 2×32129985² = 2064671872200450, which contains 22 as substring.

It is a Curzon number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 14020 + ... + 16149.

It is an arithmetic number, because the mean of its divisors is an integer number (3258360).

Almost surely, 2^32129985 is an apocalyptic number.

It is an amenable number.

32129985 is a deficient number, since it is larger than the sum of its proper divisors (20003775).

32129985 is a wasteful number, since it uses less digits than its factorization.

32129985 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 30248.

The product of its digits is 38880, while the sum is 39.

The square root of 32129985 is about 5668.3317651669. The cubic root of 32129985 is about 317.9095011651.

The spelling of 32129985 in words is "thirty-two million, one hundred twenty-nine thousand, nine hundred eighty-five".