23751613 has 2 divisors, whose sum is σ = 23751614. Its totient is φ = 23751612.

The previous prime is 23751599. The next prime is 23751641. The reversal of 23751613 is 31615732.

It is an a-pointer prime, because the next prime (23751641) can be obtained adding 23751613 to its sum of digits (28).

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 19201924 + 4549689 = 4382^2 + 2133^2 .

23751613 is a truncatable prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-23751613 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (23751313) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 11875806 + 11875807.

It is an arithmetic number, because the mean of its divisors is an integer number (11875807).

Almost surely, 2^23751613 is an apocalyptic number.

It is an amenable number.

23751613 is a deficient number, since it is larger than the sum of its proper divisors (1).

23751613 is an equidigital number, since it uses as much as digits as its factorization.

23751613 is an evil number, because the sum of its binary digits is even.

The product of its digits is 3780, while the sum is 28.

The square root of 23751613 is about 4873.5626599029. The cubic root of 23751613 is about 287.4513611480.

The spelling of 23751613 in words is "twenty-three million, seven hundred fifty-one thousand, six hundred thirteen".