22937261 has 2 divisors, whose sum is σ = 22937262. Its totient is φ = 22937260.

The previous prime is 22937251. The next prime is 22937273. The reversal of 22937261 is 16273922.

It is a happy number.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 21949225 + 988036 = 4685^2 + 994^2 .

It is a cyclic number.

It is not a de Polignac number, because 22937261 - 2¹⁰ = 22936237 is a prime.

It is a super-2 number, since 2×22937261² = 1052235884364242, which contains 22 as substring.

It is a Chen prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (22937221) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 11468630 + 11468631.

It is an arithmetic number, because the mean of its divisors is an integer number (11468631).

Almost surely, 2^22937261 is an apocalyptic number.

It is an amenable number.

22937261 is a deficient number, since it is larger than the sum of its proper divisors (1).

22937261 is an equidigital number, since it uses as much as digits as its factorization.

22937261 is an evil number, because the sum of its binary digits is even.

The product of its digits is 9072, while the sum is 32.

The square root of 22937261 is about 4789.2860637051. The cubic root of 22937261 is about 284.1278808137.

The spelling of 22937261 in words is "twenty-two million, nine hundred thirty-seven thousand, two hundred sixty-one".