23153539 has 2 divisors, whose sum is σ = 23153540. Its totient is φ = 23153538.

The previous prime is 23153531. The next prime is 23153551. The reversal of 23153539 is 93535132.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 23153539 - 2³ = 23153531 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 23153539.

It is not a weakly prime, because it can be changed into another prime (23153531) 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, 11576769 + 11576770.

It is an arithmetic number, because the mean of its divisors is an integer number (11576770).

Almost surely, 2^23153539 is an apocalyptic number.

23153539 is a deficient number, since it is larger than the sum of its proper divisors (1).

23153539 is an equidigital number, since it uses as much as digits as its factorization.

23153539 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 12150, while the sum is 31.

The square root of 23153539 is about 4811.8124443914. The cubic root of 23153539 is about 285.0181131404.

The spelling of 23153539 in words is "twenty-three million, one hundred fifty-three thousand, five hundred thirty-nine".