121393552 has 20 divisors (see below), whose sum is σ = 268800256. Its totient is φ = 52025760.

The previous prime is 121393543. The next prime is 121393553. The reversal of 121393552 is 255393121.

It is not an unprimeable number, because it can be changed into a prime (121393553) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 541824 + ... + 542047.

Almost surely, 2^121393552 is an apocalyptic number.

It is an amenable number.

121393552 is an abundant number, since it is smaller than the sum of its proper divisors (147406704).

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

121393552 is a wasteful number, since it uses less digits than its factorization.

121393552 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1083886 (or 1083880 counting only the distinct ones).

The product of its digits is 8100, while the sum is 31.

The square root of 121393552 is about 11017.8742051269. The cubic root of 121393552 is about 495.1444016352.

The spelling of 121393552 in words is "one hundred twenty-one million, three hundred ninety-three thousand, five hundred fifty-two".