123913507 has 2 divisors, whose sum is σ = 123913508. Its totient is φ = 123913506.

The previous prime is 123913483. The next prime is 123913529. The reversal of 123913507 is 705319321.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 123913507 - 2⁷ = 123913379 is a prime.

It is equal to p_7051819 and since 123913507 and 7051819 have the same sum of digits, it is a Honaker prime.

It is not a weakly prime, because it can be changed into another prime (123913577) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 61956753 + 61956754.

It is an arithmetic number, because the mean of its divisors is an integer number (61956754).

Almost surely, 2^123913507 is an apocalyptic number.

123913507 is a deficient number, since it is larger than the sum of its proper divisors (1).

123913507 is an equidigital number, since it uses as much as digits as its factorization.

123913507 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 5670, while the sum is 31.

The square root of 123913507 is about 11131.6443978417. The cubic root of 123913507 is about 498.5471250646.

The spelling of 123913507 in words is "one hundred twenty-three million, nine hundred thirteen thousand, five hundred seven".