32115138 has 32 divisors (see below), whose sum is σ = 71399232. Its totient is φ = 9547200.

The previous prime is 32115121. The next prime is 32115169. The reversal of 32115138 is 83151123.

It is a super-3 number, since 3×32115138³ (a number of 23 digits) contains 333 as substring.

It is a Curzon number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 1093 + ... + 8088.

It is an arithmetic number, because the mean of its divisors is an integer number (2231226).

Almost surely, 2^32115138 is an apocalyptic number.

32115138 is an abundant number, since it is smaller than the sum of its proper divisors (39284094).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

32115138 is a wasteful number, since it uses less digits than its factorization.

32115138 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 9250.

The product of its digits is 720, while the sum is 24.

The square root of 32115138 is about 5667.0219692533. The cubic root of 32115138 is about 317.8605258380.

The spelling of 32115138 in words is "thirty-two million, one hundred fifteen thousand, one hundred thirty-eight".