22939513 has 8 divisors (see below), whose sum is σ = 23473800. Its totient is φ = 22409088.

The previous prime is 22939489. The next prime is 22939531. The reversal of 22939513 is 31593922.

It can be written as a sum of positive squares in 4 ways, for example, as 6512704 + 16426809 = 2552^2 + 4053^2 .

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 22939513 - 2²¹ = 20842361 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (22939573) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 13453 + ... + 15061.

It is an arithmetic number, because the mean of its divisors is an integer number (2934225).

Almost surely, 2^22939513 is an apocalyptic number.

It is an amenable number.

22939513 is a deficient number, since it is larger than the sum of its proper divisors (534287).

22939513 is a wasteful number, since it uses less digits than its factorization.

22939513 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1931.

The product of its digits is 14580, while the sum is 34.

The square root of 22939513 is about 4789.5211660457. The cubic root of 22939513 is about 284.1371791492.

The spelling of 22939513 in words is "twenty-two million, nine hundred thirty-nine thousand, five hundred thirteen".