10137239 has 4 divisors (see below), whose sum is σ = 11585424. Its totient is φ = 8689056.

The previous prime is 10137233. The next prime is 10137247. The reversal of 10137239 is 93273101.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 10137239 - 2¹² = 10133143 is a prime.

It is a super-2 number, since 2×10137239² = 205527229086242, which contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (10137233) 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, 724082 + ... + 724095.

It is an arithmetic number, because the mean of its divisors is an integer number (2896356).

Almost surely, 2^10137239 is an apocalyptic number.

10137239 is a deficient number, since it is larger than the sum of its proper divisors (1448185).

10137239 is an equidigital number, since it uses as much as digits as its factorization.

10137239 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1448184.

The product of its (nonzero) digits is 1134, while the sum is 26.

The square root of 10137239 is about 3183.9031078222. The cubic root of 10137239 is about 216.4245692985.

The spelling of 10137239 in words is "ten million, one hundred thirty-seven thousand, two hundred thirty-nine".