10522139 has 4 divisors (see below), whose sum is σ = 10586856. Its totient is φ = 10457424.

The previous prime is 10522123. The next prime is 10522153. The reversal of 10522139 is 93122501.

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 10522139 - 2⁴ = 10522123 is a prime.

It is a super-2 number, since 2×10522139² = 221430818270642, which contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (10522189) 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, 32114 + ... + 32439.

It is an arithmetic number, because the mean of its divisors is an integer number (2646714).

Almost surely, 2^10522139 is an apocalyptic number.

10522139 is a deficient number, since it is larger than the sum of its proper divisors (64717).

10522139 is an equidigital number, since it uses as much as digits as its factorization.

10522139 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 64716.

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

The square root of 10522139 is about 3243.7846722617. The cubic root of 10522139 is about 219.1297508187.

The spelling of 10522139 in words is "ten million, five hundred twenty-two thousand, one hundred thirty-nine".