121904108 has 12 divisors (see below), whose sum is σ = 216829872. Its totient is φ = 59952720.

The previous prime is 121904077. The next prime is 121904113. The reversal of 121904108 is 801409121.

It is a super-2 number, since 2×121904108² = 29721223094551328, which contains 22 as substring.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 249560 + ... + 250047.

It is an arithmetic number, because the mean of its divisors is an integer number (18069156).

Almost surely, 2^121904108 is an apocalyptic number.

It is an amenable number.

121904108 is a deficient number, since it is larger than the sum of its proper divisors (94925764).

121904108 is a wasteful number, since it uses less digits than its factorization.

121904108 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 499672 (or 499670 counting only the distinct ones).

The product of its (nonzero) digits is 576, while the sum is 26.

The square root of 121904108 is about 11041.0193369996. The cubic root of 121904108 is about 495.8375888218.

The spelling of 121904108 in words is "one hundred twenty-one million, nine hundred four thousand, one hundred eight".