123761385 has 32 divisors (see below), whose sum is σ = 240024960. Its totient is φ = 60004800.

The previous prime is 123761381. The next prime is 123761389. The reversal of 123761385 is 583167321.

123761385 is a `hidden beast` number, since 1 + 2 + 37 + 613 + 8 + 5 = 666.

It is an interprime number because it is at equal distance from previous prime (123761381) and next prime (123761389).

It is not a de Polignac number, because 123761385 - 2² = 123761381 is a prime.

It is not an unprimeable number, because it can be changed into a prime (123761381) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 40186 + ... + 43155.

It is an arithmetic number, because the mean of its divisors is an integer number (7500780).

Almost surely, 2^123761385 is an apocalyptic number.

123761385 is a gapful number since it is divisible by the number (15) formed by its first and last digit.

It is an amenable number.

123761385 is a deficient number, since it is larger than the sum of its proper divisors (116263575).

123761385 is a wasteful number, since it uses less digits than its factorization.

123761385 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 83366 (or 83360 counting only the distinct ones).

The product of its digits is 30240, while the sum is 36.

The square root of 123761385 is about 11124.8094365701. The cubic root of 123761385 is about 498.3430282886.

The spelling of 123761385 in words is "one hundred twenty-three million, seven hundred sixty-one thousand, three hundred eighty-five".