121452812 has 48 divisors (see below), whose sum is σ = 242420640. Its totient is φ = 52835328.

The previous prime is 121452797. The next prime is 121452817. The reversal of 121452812 is 218254121.

It is a Harshad number since it is a multiple of its sum of digits (26).

It is not an unprimeable number, because it can be changed into a prime (121452817) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 63908 + ... + 65780.

It is an arithmetic number, because the mean of its divisors is an integer number (5050430).

Almost surely, 2^121452812 is an apocalyptic number.

It is an amenable number.

121452812 is a deficient number, since it is larger than the sum of its proper divisors (120967828).

121452812 is a wasteful number, since it uses less digits than its factorization.

121452812 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1962 (or 1960 counting only the distinct ones).

The product of its digits is 1280, while the sum is 26.

The square root of 121452812 is about 11020.5631435059. The cubic root of 121452812 is about 495.2249591372.

The spelling of 121452812 in words is "one hundred twenty-one million, four hundred fifty-two thousand, eight hundred twelve".