121652564 has 24 divisors (see below), whose sum is σ = 240256800. Its totient is φ = 53389280.

The previous prime is 121652563. The next prime is 121652569. The reversal of 121652564 is 465256121.

It is a self number, because there is not a number n which added to its sum of digits gives 121652564.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (121652563) 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, 46394 + ... + 48945.

It is an arithmetic number, because the mean of its divisors is an integer number (10010700).

Almost surely, 2^121652564 is an apocalyptic number.

It is an amenable number.

121652564 is a deficient number, since it is larger than the sum of its proper divisors (118604236).

121652564 is a wasteful number, since it uses less digits than its factorization.

121652564 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 95383 (or 95381 counting only the distinct ones).

The product of its digits is 14400, while the sum is 32.

The square root of 121652564 is about 11029.6221150137. The cubic root of 121652564 is about 495.4963073035.

The spelling of 121652564 in words is "one hundred twenty-one million, six hundred fifty-two thousand, five hundred sixty-four".