121870672 has 80 divisors (see below), whose sum is σ = 303980544. Its totient is φ = 45936000.

The previous prime is 121870667. The next prime is 121870687. The reversal of 121870672 is 276078121.

It is a happy number.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 36597 + ... + 39787.

Almost surely, 2^121870672 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 121870672, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (151990272).

121870672 is an abundant number, since it is smaller than the sum of its proper divisors (182109872).

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

121870672 is a wasteful number, since it uses less digits than its factorization.

121870672 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3248 (or 3242 counting only the distinct ones).

The product of its (nonzero) digits is 9408, while the sum is 34.

The square root of 121870672 is about 11039.5050613694. The cubic root of 121870672 is about 495.7922517070.

The spelling of 121870672 in words is "one hundred twenty-one million, eight hundred seventy thousand, six hundred seventy-two".