453318157 has 4 divisors (see below), whose sum is σ = 456320416. Its totient is φ = 450315900.

The previous prime is 453318139. The next prime is 453318161. The reversal of 453318157 is 751813354.

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 a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-453318157 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 (453318127) 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, 1500903 + ... + 1501204.

It is an arithmetic number, because the mean of its divisors is an integer number (114080104).

Almost surely, 2^453318157 is an apocalyptic number.

It is an amenable number.

453318157 is a deficient number, since it is larger than the sum of its proper divisors (3002259).

453318157 is a wasteful number, since it uses less digits than its factorization.

453318157 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3002258.

The product of its digits is 50400, while the sum is 37.

The square root of 453318157 is about 21291.2695018404. The cubic root of 453318157 is about 768.1883292165.

The spelling of 453318157 in words is "four hundred fifty-three million, three hundred eighteen thousand, one hundred fifty-seven".