39043139 has 8 divisors (see below), whose sum is σ = 39945312. Its totient is φ = 38147200.

The previous prime is 39043133. The next prime is 39043141. The reversal of 39043139 is 93134093.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 39043139 - 2²⁰ = 37994563 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (39043133) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 12539 + ... + 15339.

It is an arithmetic number, because the mean of its divisors is an integer number (4993164).

Almost surely, 2^39043139 is an apocalyptic number.

39043139 is a deficient number, since it is larger than the sum of its proper divisors (902173).

39043139 is a wasteful number, since it uses less digits than its factorization.

39043139 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3117.

The product of its (nonzero) digits is 8748, while the sum is 32.

The square root of 39043139 is about 6248.4509280301. The cubic root of 39043139 is about 339.2461353816.

The spelling of 39043139 in words is "thirty-nine million, forty-three thousand, one hundred thirty-nine".