121164408 has 48 divisors (see below), whose sum is σ = 333064680. Its totient is φ = 39783744.

The previous prime is 121164401. The next prime is 121164467. The reversal of 121164408 is 804461121.

It is a happy number.

121164408 is a `hidden beast` number, since 1 + 2 + 11 + 644 + 0 + 8 = 666.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (121164401) 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, 7735 + ... + 17382.

Almost surely, 2^121164408 is an apocalyptic number.

121164408 is a gapful number since it is divisible by the number (18) formed by its first and last digit.

It is an amenable number.

121164408 is an abundant number, since it is smaller than the sum of its proper divisors (211900272).

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

121164408 is a wasteful number, since it uses less digits than its factorization.

121164408 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 25196 (or 25189 counting only the distinct ones).

The product of its (nonzero) digits is 1536, while the sum is 27.

The square root of 121164408 is about 11007.4705541282. The cubic root of 121164408 is about 494.8326584634.

The spelling of 121164408 in words is "one hundred twenty-one million, one hundred sixty-four thousand, four hundred eight".