22392157 has 2 divisors, whose sum is σ = 22392158. Its totient is φ = 22392156.

The previous prime is 22392151. The next prime is 22392169. The reversal of 22392157 is 75129322.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 20985561 + 1406596 = 4581^2 + 1186^2 .

It is a cyclic number.

It is not a de Polignac number, because 22392157 - 2¹⁹ = 21867869 is a prime.

It is a super-2 number, since 2×22392157² = 1002817390225298, which contains 22 as substring.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (22392151) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 11196078 + 11196079.

It is an arithmetic number, because the mean of its divisors is an integer number (11196079).

Almost surely, 2^22392157 is an apocalyptic number.

It is an amenable number.

22392157 is a deficient number, since it is larger than the sum of its proper divisors (1).

22392157 is an equidigital number, since it uses as much as digits as its factorization.

22392157 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 7560, while the sum is 31.

The square root of 22392157 is about 4732.0351858371. The cubic root of 22392157 is about 281.8590454635.

The spelling of 22392157 in words is "twenty-two million, three hundred ninety-two thousand, one hundred fifty-seven".