121154404 has 24 divisors (see below), whose sum is σ = 243105408. Its totient is φ = 51752640.

The previous prime is 121154401. The next prime is 121154413. The reversal of 121154404 is 404451121.

It is not an unprimeable number, because it can be changed into a prime (121154401) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 1752 + ... + 15664.

It is an arithmetic number, because the mean of its divisors is an integer number (10129392).

Almost surely, 2^121154404 is an apocalyptic number.

121154404 is a gapful number since it is divisible by the number (14) formed by its first and last digit.

It is an amenable number.

121154404 is an abundant number, since it is smaller than the sum of its proper divisors (121951004).

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

121154404 is a wasteful number, since it uses less digits than its factorization.

121154404 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 14235 (or 14233 counting only the distinct ones).

The product of its (nonzero) digits is 640, while the sum is 22.

The square root of 121154404 is about 11007.0161260898. The cubic root of 121154404 is about 494.8190393865.

The spelling of 121154404 in words is "one hundred twenty-one million, one hundred fifty-four thousand, four hundred four".