121552444 has 12 divisors (see below), whose sum is σ = 229079704. Its totient is φ = 56101104.

The previous prime is 121552429. The next prime is 121552471. The reversal of 121552444 is 444255121.

It is a congruent number.

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, 1168722 + ... + 1168825.

Almost surely, 2^121552444 is an apocalyptic number.

It is an amenable number.

121552444 is a deficient number, since it is larger than the sum of its proper divisors (107527260).

121552444 is a wasteful number, since it uses less digits than its factorization.

121552444 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2337564 (or 2337562 counting only the distinct ones).

The product of its digits is 6400, while the sum is 28.

The square root of 121552444 is about 11025.0824940224. The cubic root of 121552444 is about 495.3603389241.

The spelling of 121552444 in words is "one hundred twenty-one million, five hundred fifty-two thousand, four hundred forty-four".