121554148 has 12 divisors (see below), whose sum is σ = 225232812. Its totient is φ = 57201920.

The previous prime is 121554133. The next prime is 121554161. The reversal of 121554148 is 841455121.

It can be written as a sum of positive squares in 2 ways, for example, as 64128064 + 57426084 = 8008^2 + 7578^2 .

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, 893713 + ... + 893848.

It is an arithmetic number, because the mean of its divisors is an integer number (18769401).

Almost surely, 2^121554148 is an apocalyptic number.

It is an amenable number.

121554148 is a deficient number, since it is larger than the sum of its proper divisors (103678664).

121554148 is a wasteful number, since it uses less digits than its factorization.

121554148 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1787582 (or 1787580 counting only the distinct ones).

The product of its digits is 6400, while the sum is 31.

The square root of 121554148 is about 11025.1597720849. The cubic root of 121554148 is about 495.3626536728.

The spelling of 121554148 in words is "one hundred twenty-one million, five hundred fifty-four thousand, one hundred forty-eight".