32432139 has 12 divisors (see below), whose sum is σ = 48883536. Its totient is φ = 20681232.

The previous prime is 32432077. The next prime is 32432143. The reversal of 32432139 is 93123423.

It is a happy number.

It is not a de Polignac number, because 32432139 - 2⁷ = 32432011 is a prime.

It is not an unprimeable number, because it can be changed into a prime (32432149) by changing a digit.

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 11 ways as a sum of consecutive naturals, for example, 78132 + ... + 78545.

It is an arithmetic number, because the mean of its divisors is an integer number (4073628).

Almost surely, 2^32432139 is an apocalyptic number.

32432139 is a deficient number, since it is larger than the sum of its proper divisors (16451397).

32432139 is a wasteful number, since it uses less digits than its factorization.

32432139 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 156706 (or 156703 counting only the distinct ones).

The product of its digits is 3888, while the sum is 27.

The square root of 32432139 is about 5694.9222119358. The cubic root of 32432139 is about 318.9029457468.

The spelling of 32432139 in words is "thirty-two million, four hundred thirty-two thousand, one hundred thirty-nine".