453252621 has 4 divisors (see below), whose sum is σ = 604336832. Its totient is φ = 302168412.

The previous prime is 453252599. The next prime is 453252641. The reversal of 453252621 is 126252354.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is not a de Polignac number, because 453252621 - 2⁶ = 453252557 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (453252641) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 75542101 + ... + 75542106.

It is an arithmetic number, because the mean of its divisors is an integer number (151084208).

Almost surely, 2^453252621 is an apocalyptic number.

It is an amenable number.

453252621 is a deficient number, since it is larger than the sum of its proper divisors (151084211).

453252621 is a wasteful number, since it uses less digits than its factorization.

453252621 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 151084210.

The product of its digits is 14400, while the sum is 30.

The square root of 453252621 is about 21289.7304116327. The cubic root of 453252621 is about 768.1513085531.

The spelling of 453252621 in words is "four hundred fifty-three million, two hundred fifty-two thousand, six hundred twenty-one".