22697139 has 8 divisors (see below), whose sum is σ = 30389392. Its totient is φ = 15068160.

The previous prime is 22697117. The next prime is 22697141. The reversal of 22697139 is 93179622.

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

It is not a de Polignac number, because 22697139 - 2⁵ = 22697107 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 22697097 and 22697106.

It is not an unprimeable number, because it can be changed into a prime (22697189) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 14974 + ... + 16419.

It is an arithmetic number, because the mean of its divisors is an integer number (3798674).

Almost surely, 2^22697139 is an apocalyptic number.

22697139 is a deficient number, since it is larger than the sum of its proper divisors (7692253).

22697139 is a wasteful number, since it uses less digits than its factorization.

22697139 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 31637.

The product of its digits is 40824, while the sum is 39.

The square root of 22697139 is about 4764.1514459555. The cubic root of 22697139 is about 283.1329229444.

The spelling of 22697139 in words is "twenty-two million, six hundred ninety-seven thousand, one hundred thirty-nine".