123377685 has 16 divisors (see below), whose sum is σ = 200641920. Its totient is φ = 64722240.

The previous prime is 123377677. The next prime is 123377689. The reversal of 123377685 is 586773321.

It is not a de Polignac number, because 123377685 - 2³ = 123377677 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (123377689) 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 in 15 ways as a sum of consecutive naturals, for example, 66505 + ... + 68334.

It is an arithmetic number, because the mean of its divisors is an integer number (12540120).

Almost surely, 2^123377685 is an apocalyptic number.

123377685 is a gapful number since it is divisible by the number (15) formed by its first and last digit.

It is an amenable number.

123377685 is a deficient number, since it is larger than the sum of its proper divisors (77264235).

123377685 is a wasteful number, since it uses less digits than its factorization.

123377685 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 134908.

The product of its digits is 211680, while the sum is 42.

The square root of 123377685 is about 11107.5508101471. The cubic root of 123377685 is about 497.8274873830.

The spelling of 123377685 in words is "one hundred twenty-three million, three hundred seventy-seven thousand, six hundred eighty-five".