22488313 has 2 divisors, whose sum is σ = 22488314. Its totient is φ = 22488312.

The previous prime is 22488293. The next prime is 22488317. The reversal of 22488313 is 31388422.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 18215824 + 4272489 = 4268^2 + 2067^2 .

It is a cyclic number.

It is not a de Polignac number, because 22488313 - 2⁵ = 22488281 is a prime.

It is not a weakly prime, because it can be changed into another prime (22488317) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 11244156 + 11244157.

It is an arithmetic number, because the mean of its divisors is an integer number (11244157).

Almost surely, 2^22488313 is an apocalyptic number.

It is an amenable number.

22488313 is a deficient number, since it is larger than the sum of its proper divisors (1).

22488313 is an equidigital number, since it uses as much as digits as its factorization.

22488313 is an evil number, because the sum of its binary digits is even.

The product of its digits is 9216, while the sum is 31.

The square root of 22488313 is about 4742.1844122725. The cubic root of 22488313 is about 282.2619206963.

It can be divided in two parts, 22488 and 313, that added together give a square (22801 = 151²).

The spelling of 22488313 in words is "twenty-two million, four hundred eighty-eight thousand, three hundred thirteen".