455352921 has 15 divisors (see below), whose sum is σ = 680505573. Its totient is φ = 303440580.

The previous prime is 455352907. The next prime is 455352941. The reversal of 455352921 is 129253554.

It is a happy number.

The square root of 455352921 is 21339.

It is a perfect power (a square), and thus also a powerful number.

It is not a de Polignac number, because 455352921 - 2⁵ = 455352889 is a prime.

It is not an unprimeable number, because it can be changed into a prime (455352941) by changing a digit.

It is a polite number, since it can be written in 14 ways as a sum of consecutive naturals, for example, 190866 + ... + 193236.

Almost surely, 2^455352921 is an apocalyptic number.

455352921 is the 21339-th square number.

455352921 is the 10670-th centered octagonal number.

It is an amenable number.

455352921 is a deficient number, since it is larger than the sum of its proper divisors (225152652).

455352921 is an frugal number, since it uses more digits than its factorization.

455352921 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4754 (or 2374 counting only the distinct ones).

The product of its digits is 54000, while the sum is 36.

The cubic root of 455352921 is about 769.3359772605.

Multiplying 455352921 by its sum of digits (36), we get a square (16392705156 = 128034²).

The spelling of 455352921 in words is "four hundred fifty-five million, three hundred fifty-two thousand, nine hundred twenty-one".