121606072 has 32 divisors (see below), whose sum is σ = 264481920. Its totient is φ = 51337440.

The previous prime is 121606027. The next prime is 121606097. The reversal of 121606072 is 270606121.

It is a congruent 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, 12454 + ... + 19957.

It is an arithmetic number, because the mean of its divisors is an integer number (8265060).

Almost surely, 2^121606072 is an apocalyptic number.

It is an amenable number.

121606072 is an abundant number, since it is smaller than the sum of its proper divisors (142875848).

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

121606072 is a wasteful number, since it uses less digits than its factorization.

121606072 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 32491 (or 32487 counting only the distinct ones).

The product of its (nonzero) digits is 1008, while the sum is 25.

The square root of 121606072 is about 11027.5143164722. The cubic root of 121606072 is about 495.4331779324.

The spelling of 121606072 in words is "one hundred twenty-one million, six hundred six thousand, seventy-two".