121493564 has 12 divisors (see below), whose sum is σ = 212948904. Its totient is φ = 60651024.

The previous prime is 121493551. The next prime is 121493569. The reversal of 121493564 is 465394121.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (121493569) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 21047 + ... + 26190.

It is an arithmetic number, because the mean of its divisors is an integer number (17745742).

Almost surely, 2^121493564 is an apocalyptic number.

It is an amenable number.

121493564 is a deficient number, since it is larger than the sum of its proper divisors (91455340).

121493564 is a wasteful number, since it uses less digits than its factorization.

121493564 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 47884 (or 47882 counting only the distinct ones).

The product of its digits is 25920, while the sum is 35.

The square root of 121493564 is about 11022.4118957695. The cubic root of 121493564 is about 495.2803418284.

The spelling of 121493564 in words is "one hundred twenty-one million, four hundred ninety-three thousand, five hundred sixty-four".