121163904 has 64 divisors (see below), whose sum is σ = 357612000. Its totient is φ = 40386816.

The previous prime is 121163899. The next prime is 121163927. The reversal of 121163904 is 409361121.

121163904 is a `hidden beast` number, since 1 + 21 + 1 + 639 + 0 + 4 = 666.

It is a tau number, because it is divible by the number of its divisors (64).

It is a hoax number, since the sum of its digits (27) coincides with the sum of the digits of its distinct prime factors.

It is a Harshad number since it is a multiple of its sum of digits (27).

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 14074 + ... + 20985.

Almost surely, 2^121163904 is an apocalyptic number.

It is an amenable number.

121163904 is an abundant number, since it is smaller than the sum of its proper divisors (236448096).

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

121163904 is an equidigital number, since it uses as much as digits as its factorization.

121163904 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 35082 (or 35064 counting only the distinct ones).

The product of its (nonzero) digits is 1296, while the sum is 27.

The square root of 121163904 is about 11007.4476605615. The cubic root of 121163904 is about 494.8319723543.

It can be divided in two parts, 121 and 163904, that added together give a square (164025 = 405²).

The spelling of 121163904 in words is "one hundred twenty-one million, one hundred sixty-three thousand, nine hundred four".