121837452 has 48 divisors (see below), whose sum is σ = 310800000. Its totient is φ = 36840960.

The previous prime is 121837451. The next prime is 121837493. The reversal of 121837452 is 254738121.

It is a Harshad number since it is a multiple of its sum of digits (33).

It is not an unprimeable number, because it can be changed into a prime (121837451) by changing a digit.

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 15 ways as a sum of consecutive naturals, for example, 96924 + ... + 98172.

It is an arithmetic number, because the mean of its divisors is an integer number (6475000).

Almost surely, 2^121837452 is an apocalyptic number.

121837452 is a gapful number since it is divisible by the number (12) formed by its first and last digit.

It is an amenable number.

121837452 is an abundant number, since it is smaller than the sum of its proper divisors (188962548).

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

121837452 is a wasteful number, since it uses less digits than its factorization.

121837452 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2006 (or 2004 counting only the distinct ones).

The product of its digits is 13440, while the sum is 33.

The square root of 121837452 is about 11038.0003623845. Note that the first 3 decimals coincide. The cubic root of 121837452 is about 495.7471992617.

The spelling of 121837452 in words is "one hundred twenty-one million, eight hundred thirty-seven thousand, four hundred fifty-two".