121532664 has 64 divisors (see below), whose sum is σ = 348912000. Its totient is φ = 34888320.

The previous prime is 121532659. The next prime is 121532681. The reversal of 121532664 is 466235121.

It is a zygodrome in base 2.

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, 7099 + ... + 17130.

It is an arithmetic number, because the mean of its divisors is an integer number (5451750).

Almost surely, 2^121532664 is an apocalyptic number.

It is an amenable number.

121532664 is an abundant number, since it is smaller than the sum of its proper divisors (227379336).

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

121532664 is a wasteful number, since it uses less digits than its factorization.

121532664 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 24268 (or 24264 counting only the distinct ones).

The product of its digits is 8640, while the sum is 30.

The square root of 121532664 is about 11024.1854120837. The cubic root of 121532664 is about 495.3334677819. Note that the first 3 decimals are identical.

Adding to 121532664 its reverse (466235121), we get a palindrome (587767785).

The spelling of 121532664 in words is "one hundred twenty-one million, five hundred thirty-two thousand, six hundred sixty-four".