22513349 has 2 divisors, whose sum is σ = 22513350. Its totient is φ = 22513348.

The previous prime is 22513339. The next prime is 22513363. The reversal of 22513349 is 94331522.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 11950849 + 10562500 = 3457^2 + 3250^2 .

It is a cyclic number.

It is not a de Polignac number, because 22513349 - 2⁸ = 22513093 is a prime.

It is a Sophie Germain prime.

It is a Curzon number.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (22513339) 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 as a sum of consecutive naturals, namely, 11256674 + 11256675.

It is an arithmetic number, because the mean of its divisors is an integer number (11256675).

Almost surely, 2^22513349 is an apocalyptic number.

It is an amenable number.

22513349 is a deficient number, since it is larger than the sum of its proper divisors (1).

22513349 is an equidigital number, since it uses as much as digits as its factorization.

22513349 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 6480, while the sum is 29.

The square root of 22513349 is about 4744.8233897586. The cubic root of 22513349 is about 282.3666282487.

The spelling of 22513349 in words is "twenty-two million, five hundred thirteen thousand, three hundred forty-nine".