32040139 has 4 divisors (see below), whose sum is σ = 32192200. Its totient is φ = 31888080.

The previous prime is 32040131. The next prime is 32040149. The reversal of 32040139 is 93104023.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 93104023 = 23 ⋅4048001.

It is a cyclic number.

It is not a de Polignac number, because 32040139 - 2³ = 32040131 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (32040131) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 75714 + ... + 76135.

It is an arithmetic number, because the mean of its divisors is an integer number (8048050).

Almost surely, 2^32040139 is an apocalyptic number.

32040139 is a deficient number, since it is larger than the sum of its proper divisors (152061).

32040139 is a wasteful number, since it uses less digits than its factorization.

32040139 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 152060.

The product of its (nonzero) digits is 648, while the sum is 22.

The square root of 32040139 is about 5660.4009575294. The cubic root of 32040139 is about 317.6128980363.

The spelling of 32040139 in words is "thirty-two million, forty thousand, one hundred thirty-nine".