8537139 has 24 divisors (see below), whose sum is σ = 13405392. Its totient is φ = 5204160.

The previous prime is 8537101. The next prime is 8537153. The reversal of 8537139 is 9317358.

It is not a de Polignac number, because 8537139 - 2⁸ = 8536883 is a prime.

It is not an unprimeable number, because it can be changed into a prime (8537159) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 15049 + ... + 15605.

It is an arithmetic number, because the mean of its divisors is an integer number (558558).

Almost surely, 2^8537139 is an apocalyptic number.

8537139 is a deficient number, since it is larger than the sum of its proper divisors (4868253).

8537139 is a wasteful number, since it uses less digits than its factorization.

8537139 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 707 (or 704 counting only the distinct ones).

The product of its digits is 22680, while the sum is 36.

The square root of 8537139 is about 2921.8382912133. The cubic root of 8537139 is about 204.3795557720.

The spelling of 8537139 in words is "eight million, five hundred thirty-seven thousand, one hundred thirty-nine".