121358625 has 16 divisors (see below), whose sum is σ = 201941376. Its totient is φ = 64724400.

The previous prime is 121358623. The next prime is 121358659. The reversal of 121358625 is 526853121.

It is not a de Polignac number, because 121358625 - 2¹ = 121358623 is a prime.

It is not an unprimeable number, because it can be changed into a prime (121358623) 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, 161437 + ... + 162186.

It is an arithmetic number, because the mean of its divisors is an integer number (12621336).

Almost surely, 2^121358625 is an apocalyptic number.

121358625 is a gapful number since it is divisible by the number (15) formed by its first and last digit.

It is an amenable number.

121358625 is a deficient number, since it is larger than the sum of its proper divisors (80582751).

121358625 is an equidigital number, since it uses as much as digits as its factorization.

121358625 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 323641 (or 323631 counting only the distinct ones).

The product of its digits is 14400, while the sum is 33.

The square root of 121358625 is about 11016.2890757278. The cubic root of 121358625 is about 495.0969099108.

The spelling of 121358625 in words is "one hundred twenty-one million, three hundred fifty-eight thousand, six hundred twenty-five".