455121564 has 12 divisors (see below), whose sum is σ = 1061950344. Its totient is φ = 151707184.

The previous prime is 455121559. The next prime is 455121577. The reversal of 455121564 is 465121554.

It is a tau number, because it is divible by the number of its divisors (12).

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 18963387 + ... + 18963410.

It is an arithmetic number, because the mean of its divisors is an integer number (88495862).

Almost surely, 2^455121564 is an apocalyptic number.

It is an amenable number.

455121564 is an abundant number, since it is smaller than the sum of its proper divisors (606828780).

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

455121564 is a wasteful number, since it uses less digits than its factorization.

455121564 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 37926804 (or 37926802 counting only the distinct ones).

The product of its digits is 24000, while the sum is 33.

The square root of 455121564 is about 21333.5783215100. The cubic root of 455121564 is about 769.2056597209.

The spelling of 455121564 in words is "four hundred fifty-five million, one hundred twenty-one thousand, five hundred sixty-four".