123561625 has 32 divisors (see below), whose sum is σ = 170666496. Its totient is φ = 88560000.

The previous prime is 123561587. The next prime is 123561671. The reversal of 123561625 is 526165321.

It is not a de Polignac number, because 123561625 - 2¹¹ = 123559577 is a prime.

It is an unprimeable number.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 99760 + ... + 100990.

It is an arithmetic number, because the mean of its divisors is an integer number (5333328).

Almost surely, 2^123561625 is an apocalyptic number.

It is an amenable number.

123561625 is a deficient number, since it is larger than the sum of its proper divisors (47104871).

123561625 is a wasteful number, since it uses less digits than its factorization.

123561625 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1330 (or 1320 counting only the distinct ones).

The product of its digits is 10800, while the sum is 31.

The square root of 123561625 is about 11115.8276794848. The cubic root of 123561625 is about 498.0747631071.

The spelling of 123561625 in words is "one hundred twenty-three million, five hundred sixty-one thousand, six hundred twenty-five".