10139506 has 8 divisors (see below), whose sum is σ = 16379244. Its totient is φ = 4679760.

The previous prime is 10139501. The next prime is 10139509. The reversal of 10139506 is 60593101.

It can be written as a sum of positive squares in 2 ways, for example, as 9554281 + 585225 = 3091^2 + 765^2 .

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

It is not an unprimeable number, because it can be changed into a prime (10139501) 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, 194965 + ... + 195016.

Almost surely, 2^10139506 is an apocalyptic number.

10139506 is a deficient number, since it is larger than the sum of its proper divisors (6239738).

10139506 is a wasteful number, since it uses less digits than its factorization.

10139506 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 389996.

The product of its (nonzero) digits is 810, while the sum is 25.

The square root of 10139506 is about 3184.2590974982. The cubic root of 10139506 is about 216.4407011707.

The spelling of 10139506 in words is "ten million, one hundred thirty-nine thousand, five hundred six".