22697137 has 4 divisors (see below), whose sum is σ = 22833216. Its totient is φ = 22561060.

The previous prime is 22697117. The next prime is 22697141. The reversal of 22697137 is 73179622.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is not a de Polignac number, because 22697137 - 2⁷ = 22697009 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 22697096 and 22697105.

It is not an unprimeable number, because it can be changed into a prime (22697107) 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, 67789 + ... + 68122.

It is an arithmetic number, because the mean of its divisors is an integer number (5708304).

Almost surely, 2^22697137 is an apocalyptic number.

It is an amenable number.

22697137 is a deficient number, since it is larger than the sum of its proper divisors (136079).

22697137 is a wasteful number, since it uses less digits than its factorization.

22697137 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 136078.

The product of its digits is 31752, while the sum is 37.

The square root of 22697137 is about 4764.1512360545. The cubic root of 22697137 is about 283.1329146282.

The spelling of 22697137 in words is "twenty-two million, six hundred ninety-seven thousand, one hundred thirty-seven".