121606872 has 32 divisors (see below), whose sum is σ = 305726400. Its totient is φ = 40307744.

The previous prime is 121606867. The next prime is 121606879. The reversal of 121606872 is 278606121.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (121606879) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 9858 + ... + 18449.

It is an arithmetic number, because the mean of its divisors is an integer number (9553950).

Almost surely, 2^121606872 is an apocalyptic number.

121606872 is a gapful number since it is divisible by the number (12) formed by its first and last digit.

It is an amenable number.

121606872 is an abundant number, since it is smaller than the sum of its proper divisors (184119528).

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

121606872 is a wasteful number, since it uses less digits than its factorization.

121606872 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 28495 (or 28491 counting only the distinct ones).

The product of its (nonzero) digits is 8064, while the sum is 33.

The square root of 121606872 is about 11027.5505893195. The cubic root of 121606872 is about 495.4342643521.

The spelling of 121606872 in words is "one hundred twenty-one million, six hundred six thousand, eight hundred seventy-two".