121265425 has 6 divisors (see below), whose sum is σ = 150369158. Its totient is φ = 97012320.

The previous prime is 121265401. The next prime is 121265477. The reversal of 121265425 is 524562121.

It can be written as a sum of positive squares in 3 ways, for example, as 13749264 + 107516161 = 3708^2 + 10369^2 .

It is a de Polignac number, because none of the positive numbers 2^k-121265425 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 121265393 and 121265402.

It is an unprimeable number.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 2425284 + ... + 2425333.

Almost surely, 2^121265425 is an apocalyptic number.

It is an amenable number.

121265425 is a deficient number, since it is larger than the sum of its proper divisors (29103733).

121265425 is an equidigital number, since it uses as much as digits as its factorization.

121265425 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4850627 (or 4850622 counting only the distinct ones).

The product of its digits is 4800, while the sum is 28.

The square root of 121265425 is about 11012.0581636677. The cubic root of 121265425 is about 494.9701372999.

The spelling of 121265425 in words is "one hundred twenty-one million, two hundred sixty-five thousand, four hundred twenty-five".