22324157 has 2 divisors, whose sum is σ = 22324158. Its totient is φ = 22324156.

The previous prime is 22324153. The next prime is 22324177. The reversal of 22324157 is 75142322.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 22033636 + 290521 = 4694^2 + 539^2 .

It is a cyclic number.

It is not a de Polignac number, because 22324157 - 2² = 22324153 is a prime.

It is a super-3 number, since 3×22324157³ (a number of 23 digits) contains 333 as substring.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (22324151) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 11162078 + 11162079.

It is an arithmetic number, because the mean of its divisors is an integer number (11162079).

Almost surely, 2^22324157 is an apocalyptic number.

It is an amenable number.

22324157 is a deficient number, since it is larger than the sum of its proper divisors (1).

22324157 is an equidigital number, since it uses as much as digits as its factorization.

22324157 is an evil number, because the sum of its binary digits is even.

The product of its digits is 3360, while the sum is 26.

The square root of 22324157 is about 4724.8446535309. The cubic root of 22324157 is about 281.5734417546.

Adding to 22324157 its reverse (75142322), we get a palindrome (97466479).

The spelling of 22324157 in words is "twenty-two million, three hundred twenty-four thousand, one hundred fifty-seven".