121525315 has 8 divisors (see below), whose sum is σ = 148933440. Its totient is φ = 95151552.

The previous prime is 121525291. The next prime is 121525331. The reversal of 121525315 is 513525121.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 121525315 - 2¹⁷ = 121394243 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 121525315.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 258330 + ... + 258799.

It is an arithmetic number, because the mean of its divisors is an integer number (18616680).

Almost surely, 2^121525315 is an apocalyptic number.

121525315 is a deficient number, since it is larger than the sum of its proper divisors (27408125).

121525315 is an equidigital number, since it uses as much as digits as its factorization.

121525315 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 517181.

The product of its digits is 1500, while the sum is 25.

The square root of 121525315 is about 11023.8520944360. The cubic root of 121525315 is about 495.3234834180.

The spelling of 121525315 in words is "one hundred twenty-one million, five hundred twenty-five thousand, three hundred fifteen".