22139007 has 24 divisors (see below), whose sum is σ = 32941440. Its totient is φ = 13213200.

The previous prime is 22139003. The next prime is 22139027. The reversal of 22139007 is 70093122.

It is not a de Polignac number, because 22139007 - 2² = 22139003 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (22139003) 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, 25344 + ... + 26202.

It is an arithmetic number, because the mean of its divisors is an integer number (1372560).

Almost surely, 2^22139007 is an apocalyptic number.

22139007 is a deficient number, since it is larger than the sum of its proper divisors (10802433).

22139007 is a wasteful number, since it uses less digits than its factorization.

22139007 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 955 (or 944 counting only the distinct ones).

The product of its (nonzero) digits is 756, while the sum is 24.

The square root of 22139007 is about 4705.2106222782. The cubic root of 22139007 is about 280.7928506268.

The spelling of 22139007 in words is "twenty-two million, one hundred thirty-nine thousand, seven".