121275408 has 20 divisors (see below), whose sum is σ = 313294928. Its totient is φ = 40425120.

The previous prime is 121275403. The next prime is 121275409. The reversal of 121275408 is 804572121.

It is not an unprimeable number, because it can be changed into a prime (121275403) 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, 1263238 + ... + 1263333.

Almost surely, 2^121275408 is an apocalyptic number.

It is an amenable number.

121275408 is an abundant number, since it is smaller than the sum of its proper divisors (192019520).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

121275408 is a wasteful number, since it uses less digits than its factorization.

121275408 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2526582 (or 2526576 counting only the distinct ones).

The product of its (nonzero) digits is 4480, while the sum is 30.

The square root of 121275408 is about 11012.5114301870. The cubic root of 121275408 is about 494.9837194931.

The spelling of 121275408 in words is "one hundred twenty-one million, two hundred seventy-five thousand, four hundred eight".