121586648 has 64 divisors (see below), whose sum is σ = 248209920. Its totient is φ = 55686400.

The previous prime is 121586639. The next prime is 121586651. The reversal of 121586648 is 846685121.

It is a Harshad number since it is a multiple of its sum of digits (41).

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 535511 + ... + 535737.

It is an arithmetic number, because the mean of its divisors is an integer number (3878280).

Almost surely, 2^121586648 is an apocalyptic number.

It is an amenable number.

121586648 is an abundant number, since it is smaller than the sum of its proper divisors (126623272).

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

121586648 is a wasteful number, since it uses less digits than its factorization.

121586648 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 368 (or 364 counting only the distinct ones).

The product of its digits is 92160, while the sum is 41.

The square root of 121586648 is about 11026.6335751216. The cubic root of 121586648 is about 495.4067982013.

The spelling of 121586648 in words is "one hundred twenty-one million, five hundred eighty-six thousand, six hundred forty-eight".