121525297 has 4 divisors (see below), whose sum is σ = 121802560. Its totient is φ = 121248036.

The previous prime is 121525291. The next prime is 121525331. The reversal of 121525297 is 792525121.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4, and also an emirpimes, since its reverse is a distinct semiprime: 792525121 = 41 ⋅19329881.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-121525297 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (121525291) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 137973 + ... + 138850.

It is an arithmetic number, because the mean of its divisors is an integer number (30450640).

Almost surely, 2^121525297 is an apocalyptic number.

It is an amenable number.

121525297 is a deficient number, since it is larger than the sum of its proper divisors (277263).

121525297 is an equidigital number, since it uses as much as digits as its factorization.

121525297 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 277262.

The product of its digits is 12600, while the sum is 34.

The square root of 121525297 is about 11023.8512780244. The cubic root of 121525297 is about 495.3234589627.

The spelling of 121525297 in words is "one hundred twenty-one million, five hundred twenty-five thousand, two hundred ninety-seven".