121208408 has 8 divisors (see below), whose sum is σ = 227265780. Its totient is φ = 60604200.

The previous prime is 121208389. The next prime is 121208447. The reversal of 121208408 is 804802121.

It is a tau number, because it is divible by the number of its divisors (8).

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 7575518 + ... + 7575533.

Almost surely, 2^121208408 is an apocalyptic number.

It is an amenable number.

121208408 is a deficient number, since it is larger than the sum of its proper divisors (106057372).

121208408 is a wasteful number, since it uses less digits than its factorization.

121208408 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 15151057 (or 15151053 counting only the distinct ones).

The product of its (nonzero) digits is 1024, while the sum is 26.

The square root of 121208408 is about 11009.4690153522. The cubic root of 121208408 is about 494.8925495440.

The spelling of 121208408 in words is "one hundred twenty-one million, two hundred eight thousand, four hundred eight".