121587425 has 12 divisors (see below), whose sum is σ = 155632896. Its totient is φ = 94131600.

The previous prime is 121587419. The next prime is 121587437. The reversal of 121587425 is 524785121.

It is not a de Polignac number, because 121587425 - 2⁴ = 121587409 is a prime.

It is an unprimeable number.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 77669 + ... + 79218.

It is an arithmetic number, because the mean of its divisors is an integer number (12969408).

Almost surely, 2^121587425 is an apocalyptic number.

It is an amenable number.

121587425 is a deficient number, since it is larger than the sum of its proper divisors (34045471).

121587425 is a wasteful number, since it uses less digits than its factorization.

121587425 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 156928 (or 156923 counting only the distinct ones).

The product of its digits is 22400, while the sum is 35.

The square root of 121587425 is about 11026.6688079401. The cubic root of 121587425 is about 495.4078534988.

The spelling of 121587425 in words is "one hundred twenty-one million, five hundred eighty-seven thousand, four hundred twenty-five".