121624425 has 72 divisors (see below), whose sum is σ = 240304064. Its totient is φ = 58423680.

The previous prime is 121624421. The next prime is 121624427. The reversal of 121624425 is 524426121.

121624425 is a `hidden beast` number, since 1 + 216 + 2 + 442 + 5 = 666.

It is not a de Polignac number, because 121624425 - 2² = 121624421 is a prime.

It is not an unprimeable number, because it can be changed into a prime (121624421) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 71 ways as a sum of consecutive naturals, for example, 125292 + ... + 126258.

Almost surely, 2^121624425 is an apocalyptic number.

121624425 is a gapful number since it is divisible by the number (15) formed by its first and last digit.

It is an amenable number.

121624425 is a deficient number, since it is larger than the sum of its proper divisors (118679639).

121624425 is a wasteful number, since it uses less digits than its factorization.

121624425 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1039 (or 1031 counting only the distinct ones).

The product of its digits is 3840, while the sum is 27.

The square root of 121624425 is about 11028.3464309025. The cubic root of 121624425 is about 495.4581005578.

The spelling of 121624425 in words is "one hundred twenty-one million, six hundred twenty-four thousand, four hundred twenty-five".