23002513 has 4 divisors (see below), whose sum is σ = 24355620. Its totient is φ = 21649408.

The previous prime is 23002501. The next prime is 23002531. The reversal of 23002513 is 31520032.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in 2 ways, for example, as 9290304 + 13712209 = 3048^2 + 3703^2 .

It is a cyclic number.

It is not a de Polignac number, because 23002513 - 2¹⁷ = 22871441 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (23002543) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 676528 + ... + 676561.

It is an arithmetic number, because the mean of its divisors is an integer number (6088905).

Almost surely, 2^23002513 is an apocalyptic number.

It is an amenable number.

23002513 is a deficient number, since it is larger than the sum of its proper divisors (1353107).

23002513 is a wasteful number, since it uses less digits than its factorization.

23002513 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1353106.

The product of its (nonzero) digits is 180, while the sum is 16.

The square root of 23002513 is about 4796.0935145178. The cubic root of 23002513 is about 284.3970550539.

Adding to 23002513 its reverse (31520032), we get a palindrome (54522545).

The spelling of 23002513 in words is "twenty-three million, two thousand, five hundred thirteen".