453135021 has 4 divisors (see below), whose sum is σ = 604180032. Its totient is φ = 302090012.

The previous prime is 453135019. The next prime is 453135031. The reversal of 453135021 is 120531354.

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 not a de Polignac number, because 453135021 - 2¹ = 453135019 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 453134982 and 453135000.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (453135031) by changing a digit.

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, 75522501 + ... + 75522506.

It is an arithmetic number, because the mean of its divisors is an integer number (151045008).

Almost surely, 2^453135021 is an apocalyptic number.

It is an amenable number.

453135021 is a deficient number, since it is larger than the sum of its proper divisors (151045011).

453135021 is a wasteful number, since it uses less digits than its factorization.

453135021 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 151045010.

The product of its (nonzero) digits is 1800, while the sum is 24.

The square root of 453135021 is about 21286.9683374594. The cubic root of 453135021 is about 768.0848684831.

Adding to 453135021 its reverse (120531354), we get a palindrome (573666375).

The spelling of 453135021 in words is "four hundred fifty-three million, one hundred thirty-five thousand, twenty-one".