22156365 has 32 divisors (see below), whose sum is σ = 44199936. Its totient is φ = 9207360.

The previous prime is 22156363. The next prime is 22156369. The reversal of 22156365 is 56365122.

It is not a de Polignac number, because 22156365 - 2¹ = 22156363 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (22156361) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 8437 + ... + 10746.

It is an arithmetic number, because the mean of its divisors is an integer number (1381248).

Almost surely, 2^22156365 is an apocalyptic number.

It is an amenable number.

22156365 is a deficient number, since it is larger than the sum of its proper divisors (22043571).

22156365 is a wasteful number, since it uses less digits than its factorization.

22156365 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 19209.

The product of its digits is 10800, while the sum is 30.

The square root of 22156365 is about 4707.0548116630. The cubic root of 22156365 is about 280.8662162938.

The spelling of 22156365 in words is "twenty-two million, one hundred fifty-six thousand, three hundred sixty-five".