121051525 has 12 divisors (see below), whose sum is σ = 171547552. Its totient is φ = 83006640.

The previous prime is 121051519. The next prime is 121051529. The reversal of 121051525 is 525150121.

It is a happy number.

It is not a de Polignac number, because 121051525 - 2³ = 121051517 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 121051496 and 121051505.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (121051529) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 345687 + ... + 346036.

Almost surely, 2^121051525 is an apocalyptic number.

It is an amenable number.

121051525 is a deficient number, since it is larger than the sum of its proper divisors (50496027).

121051525 is an equidigital number, since it uses as much as digits as its factorization.

121051525 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 691740 (or 691735 counting only the distinct ones).

The product of its (nonzero) digits is 500, while the sum is 22.

The square root of 121051525 is about 11002.3417961814. The cubic root of 121051525 is about 494.6789401900.

The spelling of 121051525 in words is "one hundred twenty-one million, fifty-one thousand, five hundred twenty-five".