22082157 has 6 divisors (see below), whose sum is σ = 31896462. Its totient is φ = 14721432.

The previous prime is 22082153. The next prime is 22082171. The reversal of 22082157 is 75128022.

It can be written as a sum of positive squares in only one way, i.e., 21261321 + 820836 = 4611^2 + 906^2 .

It is not a de Polignac number, because 22082157 - 2² = 22082153 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 22082157.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (22082153) 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 5 ways as a sum of consecutive naturals, for example, 1226778 + ... + 1226795.

It is an arithmetic number, because the mean of its divisors is an integer number (5316077).

Almost surely, 2^22082157 is an apocalyptic number.

It is an amenable number.

22082157 is a deficient number, since it is larger than the sum of its proper divisors (9814305).

22082157 is a wasteful number, since it uses less digits than its factorization.

22082157 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2453579 (or 2453576 counting only the distinct ones).

The product of its (nonzero) digits is 2240, while the sum is 27.

The square root of 22082157 is about 4699.1655642252. The cubic root of 22082157 is about 280.5522984834.

The spelling of 22082157 in words is "twenty-two million, eighty-two thousand, one hundred fifty-seven".