121871632 has 40 divisors (see below), whose sum is σ = 242824736. Its totient is φ = 59222016.

The previous prime is 121871591. The next prime is 121871663. The reversal of 121871632 is 236178121.

It is a junction number, because it is equal to n+sod(n) for n = 121871594 and 121871603.

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, 210928 + ... + 211504.

Almost surely, 2^121871632 is an apocalyptic number.

It is an amenable number.

121871632 is a deficient number, since it is larger than the sum of its proper divisors (120953104).

121871632 is a wasteful number, since it uses less digits than its factorization.

121871632 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 935 (or 929 counting only the distinct ones).

The product of its digits is 4032, while the sum is 31.

The square root of 121871632 is about 11039.5485414939. The cubic root of 121871632 is about 495.7935535223.

The spelling of 121871632 in words is "one hundred twenty-one million, eight hundred seventy-one thousand, six hundred thirty-two".