121472656 has 40 divisors (see below), whose sum is σ = 239116640. Its totient is φ = 59774976.

The previous prime is 121472651. The next prime is 121472669. The reversal of 121472656 is 656274121.

It is not an unprimeable number, because it can be changed into a prime (121472651) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 429091 + ... + 429373.

It is an arithmetic number, because the mean of its divisors is an integer number (5977916).

Almost surely, 2^121472656 is an apocalyptic number.

121472656 is a gapful number since it is divisible by the number (16) formed by its first and last digit.

It is an amenable number.

121472656 is a deficient number, since it is larger than the sum of its proper divisors (117643984).

121472656 is a wasteful number, since it uses less digits than its factorization.

121472656 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 623 (or 617 counting only the distinct ones).

The product of its digits is 20160, while the sum is 34.

The square root of 121472656 is about 11021.4634237020. The cubic root of 121472656 is about 495.2519290327.

The spelling of 121472656 in words is "one hundred twenty-one million, four hundred seventy-two thousand, six hundred fifty-six".