10139522 has 4 divisors (see below), whose sum is σ = 15209286. Its totient is φ = 5069760.

The previous prime is 10139513. The next prime is 10139543. The reversal of 10139522 is 22593101.

10139522 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

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

It can be written as a sum of positive squares in only one way, i.e., 5900041 + 4239481 = 2429^2 + 2059^2 .

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 2534879 + ... + 2534882.

Almost surely, 2^10139522 is an apocalyptic number.

10139522 is a deficient number, since it is larger than the sum of its proper divisors (5069764).

10139522 is an equidigital number, since it uses as much as digits as its factorization.

10139522 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 5069763.

The product of its (nonzero) digits is 540, while the sum is 23.

The square root of 10139522 is about 3184.2616098556. The cubic root of 10139522 is about 216.4408150174.

The spelling of 10139522 in words is "ten million, one hundred thirty-nine thousand, five hundred twenty-two".