121525125 has 16 divisors (see below), whose sum is σ = 202218432. Its totient is φ = 64813200.

The previous prime is 121525093. The next prime is 121525133. The reversal of 121525125 is 521525121.

It is not a de Polignac number, because 121525125 - 2⁵ = 121525093 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 121525095 and 121525104.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 161659 + ... + 162408.

It is an arithmetic number, because the mean of its divisors is an integer number (12638652).

Almost surely, 2^121525125 is an apocalyptic number.

121525125 is a gapful number since it is divisible by the number (15) formed by its first and last digit.

It is an amenable number.

121525125 is a deficient number, since it is larger than the sum of its proper divisors (80693307).

121525125 is an equidigital number, since it uses as much as digits as its factorization.

121525125 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 324085 (or 324075 counting only the distinct ones).

The product of its digits is 1000, while the sum is 24.

The square root of 121525125 is about 11023.8434767553. The cubic root of 121525125 is about 495.3232252783.

The spelling of 121525125 in words is "one hundred twenty-one million, five hundred twenty-five thousand, one hundred twenty-five".