121457672 has 32 divisors (see below), whose sum is σ = 265584000. Its totient is φ = 52052112.

The previous prime is 121457669. The next prime is 121457683. The reversal of 121457672 is 276754121.

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, 19388 + ... + 24875.

It is an arithmetic number, because the mean of its divisors is an integer number (8299500).

Almost surely, 2^121457672 is an apocalyptic number.

It is an amenable number.

121457672 is an abundant number, since it is smaller than the sum of its proper divisors (144126328).

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

121457672 is an equidigital number, since it uses as much as digits as its factorization.

121457672 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 44290 (or 44272 counting only the distinct ones).

The product of its digits is 23520, while the sum is 35.

The square root of 121457672 is about 11020.7836381992. The cubic root of 121457672 is about 495.2315646140.

The spelling of 121457672 in words is "one hundred twenty-one million, four hundred fifty-seven thousand, six hundred seventy-two".