451032213 has 4 divisors (see below), whose sum is σ = 601376288. Its totient is φ = 300688140.

The previous prime is 451032193. The next prime is 451032221. The reversal of 451032213 is 312230154.

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 451032213 - 2⁵ = 451032181 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 451032213.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (451032293) 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, 75172033 + ... + 75172038.

It is an arithmetic number, because the mean of its divisors is an integer number (150344072).

Almost surely, 2^451032213 is an apocalyptic number.

It is an amenable number.

451032213 is a deficient number, since it is larger than the sum of its proper divisors (150344075).

451032213 is a wasteful number, since it uses less digits than its factorization.

451032213 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 150344074.

The product of its (nonzero) digits is 720, while the sum is 21.

The square root of 451032213 is about 21237.5189935171. The cubic root of 451032213 is about 766.8949068613.

Adding to 451032213 its reverse (312230154), we get a palindrome (763262367).

The spelling of 451032213 in words is "four hundred fifty-one million, thirty-two thousand, two hundred thirteen".