123916507 has 16 divisors (see below), whose sum is σ = 150605280. Its totient is φ = 100396800.

The previous prime is 123916501. The next prime is 123916543. The reversal of 123916507 is 705619321.

It is a cyclic number.

It is not a de Polignac number, because 123916507 - 2¹⁹ = 123392219 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (123916501) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 10794 + ... + 19087.

It is an arithmetic number, because the mean of its divisors is an integer number (9412830).

Almost surely, 2^123916507 is an apocalyptic number.

123916507 is a deficient number, since it is larger than the sum of its proper divisors (26688773).

123916507 is a wasteful number, since it uses less digits than its factorization.

123916507 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 29934.

The product of its (nonzero) digits is 11340, while the sum is 34.

The square root of 123916507 is about 11131.7791480068. The cubic root of 123916507 is about 498.5511483798.

The spelling of 123916507 in words is "one hundred twenty-three million, nine hundred sixteen thousand, five hundred seven".