23135687 has 2 divisors, whose sum is σ = 23135688. Its totient is φ = 23135686.

The previous prime is 23135681. The next prime is 23135689. The reversal of 23135687 is 78653132.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 23135687 - 2²⁰ = 22087111 is a prime.

Together with 23135689, it forms a pair of twin primes.

It is a Chen prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (23135681) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 11567843 + 11567844.

It is an arithmetic number, because the mean of its divisors is an integer number (11567844).

Almost surely, 2^23135687 is an apocalyptic number.

23135687 is a deficient number, since it is larger than the sum of its proper divisors (1).

23135687 is an equidigital number, since it uses as much as digits as its factorization.

23135687 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 30240, while the sum is 35.

The square root of 23135687 is about 4809.9570684155. The cubic root of 23135687 is about 284.9448421008.

It can be divided in two parts, 2313 and 5687, that added together give a cube (8000 = 20³).

The spelling of 23135687 in words is "twenty-three million, one hundred thirty-five thousand, six hundred eighty-seven".