121492660 has 12 divisors (see below), whose sum is σ = 255134628. Its totient is φ = 48597056.

The previous prime is 121492649. The next prime is 121492699. The reversal of 121492660 is 66294121.

It can be written as a sum of positive squares in 2 ways, for example, as 35856144 + 85636516 = 5988^2 + 9254^2 .

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 3037297 + ... + 3037336.

It is an arithmetic number, because the mean of its divisors is an integer number (21261219).

Almost surely, 2^121492660 is an apocalyptic number.

121492660 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

121492660 is an abundant number, since it is smaller than the sum of its proper divisors (133641968).

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

121492660 is a wasteful number, since it uses less digits than its factorization.

121492660 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 6074642 (or 6074640 counting only the distinct ones).

The product of its (nonzero) digits is 5184, while the sum is 31.

The square root of 121492660 is about 11022.3708883343. The cubic root of 121492660 is about 495.2791134107.

The spelling of 121492660 in words is "one hundred twenty-one million, four hundred ninety-two thousand, six hundred sixty".