121296897 has 12 divisors (see below), whose sum is σ = 177675264. Its totient is φ = 79725240.

The previous prime is 121296881. The next prime is 121296907. The reversal of 121296897 is 798692121.

It is not a de Polignac number, because 121296897 - 2⁴ = 121296881 is a prime.

It is a Smith number, since the sum of its digits (45) coincides with the sum of the digits of its prime factors.

It is not an unprimeable number, because it can be changed into a prime (121296997) 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, 94273 + ... + 95550.

It is an arithmetic number, because the mean of its divisors is an integer number (14806272).

Almost surely, 2^121296897 is an apocalyptic number.

It is an amenable number.

121296897 is a deficient number, since it is larger than the sum of its proper divisors (56378367).

121296897 is a wasteful number, since it uses less digits than its factorization.

121296897 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 189900 (or 189897 counting only the distinct ones).

The product of its digits is 108864, while the sum is 45.

The square root of 121296897 is about 11013.4870499765. The cubic root of 121296897 is about 495.0129534413.

The spelling of 121296897 in words is "one hundred twenty-one million, two hundred ninety-six thousand, eight hundred ninety-seven".