121554324 has 96 divisors (see below), whose sum is σ = 340905600. Its totient is φ = 37324800.

The previous prime is 121554313. The next prime is 121554347. The reversal of 121554324 is 423455121.

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

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 75124 + ... + 76724.

It is an arithmetic number, because the mean of its divisors is an integer number (3551100).

Almost surely, 2^121554324 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 121554324, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (170452800).

121554324 is an abundant number, since it is smaller than the sum of its proper divisors (219351276).

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

121554324 is a wasteful number, since it uses less digits than its factorization.

121554324 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1670 (or 1662 counting only the distinct ones).

The product of its digits is 4800, while the sum is 27.

The square root of 121554324 is about 11025.1677538258. The cubic root of 121554324 is about 495.3628927536.

The spelling of 121554324 in words is "one hundred twenty-one million, five hundred fifty-four thousand, three hundred twenty-four".