121154976 has 36 divisors (see below), whose sum is σ = 344535282. Its totient is φ = 40384896.

The previous prime is 121154933. The next prime is 121154987. The reversal of 121154976 is 679451121.

It can be written as a sum of positive squares in only one way, i.e., 97535376 + 23619600 = 9876^2 + 4860^2 .

It is a tau number, because it is divible by the number of its divisors (36).

It is a Harshad number since it is a multiple of its sum of digits (36).

It is a self number, because there is not a number n which added to its sum of digits gives 121154976.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 210051 + ... + 210626.

Almost surely, 2^121154976 is an apocalyptic number.

121154976 is a gapful number since it is divisible by the number (16) formed by its first and last digit.

It is an amenable number.

121154976 is an abundant number, since it is smaller than the sum of its proper divisors (223380306).

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

121154976 is a wasteful number, since it uses less digits than its factorization.

121154976 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 420693 (or 420682 counting only the distinct ones).

The product of its digits is 15120, while the sum is 36.

The square root of 121154976 is about 11007.0421094861. The cubic root of 121154976 is about 494.8198181064.

It can be divided in two parts, 12115497 and 6, that added together give a triangular number (12115503 = T₄₉₂₂).

The spelling of 121154976 in words is "one hundred twenty-one million, one hundred fifty-four thousand, nine hundred seventy-six".