123647625 has 48 divisors (see below), whose sum is σ = 224864640. Its totient is φ = 65364000.

The previous prime is 123647621. The next prime is 123647633. The reversal of 123647625 is 526746321.

123647625 is a `hidden beast` number, since 1 + 2 + 3 + 647 + 6 + 2 + 5 = 666.

It is not a de Polignac number, because 123647625 - 2² = 123647621 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 123647625.

It is not an unprimeable number, because it can be changed into a prime (123647621) by changing a digit.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 146956 + ... + 147794.

It is an arithmetic number, because the mean of its divisors is an integer number (4684680).

Almost surely, 2^123647625 is an apocalyptic number.

123647625 is a gapful number since it is divisible by the number (15) formed by its first and last digit.

It is an amenable number.

123647625 is a deficient number, since it is larger than the sum of its proper divisors (101217015).

123647625 is a wasteful number, since it uses less digits than its factorization.

123647625 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 991 (or 978 counting only the distinct ones).

The product of its digits is 60480, while the sum is 36.

The square root of 123647625 is about 11119.6953645322. The cubic root of 123647625 is about 498.1902911435.

The spelling of 123647625 in words is "one hundred twenty-three million, six hundred forty-seven thousand, six hundred twenty-five".