121453612 has 24 divisors (see below), whose sum is σ = 244321056. Its totient is φ = 51748608.

The previous prime is 121453601. The next prime is 121453621. The reversal of 121453612 is 216354121.

It is a happy number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 7693 + ... + 17380.

It is an arithmetic number, because the mean of its divisors is an integer number (10180044).

Almost surely, 2^121453612 is an apocalyptic number.

It is an amenable number.

121453612 is an abundant number, since it is smaller than the sum of its proper divisors (122867444).

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

121453612 is a wasteful number, since it uses less digits than its factorization.

121453612 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 25257 (or 25255 counting only the distinct ones).

The product of its digits is 1440, while the sum is 25.

The square root of 121453612 is about 11020.5994392320. The cubic root of 121453612 is about 495.2260464706.

The spelling of 121453612 in words is "one hundred twenty-one million, four hundred fifty-three thousand, six hundred twelve".