451403013 has 4 divisors (see below), whose sum is σ = 601870688. Its totient is φ = 300935340.

The previous prime is 451403003. The next prime is 451403033. The reversal of 451403013 is 310304154.

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 451403013 - 2⁵ = 451402981 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 (451403003) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 75233833 + ... + 75233838.

It is an arithmetic number, because the mean of its divisors is an integer number (150467672).

Almost surely, 2^451403013 is an apocalyptic number.

It is an amenable number.

451403013 is a deficient number, since it is larger than the sum of its proper divisors (150467675).

451403013 is a wasteful number, since it uses less digits than its factorization.

451403013 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 150467674.

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

The square root of 451403013 is about 21246.2470332998. The cubic root of 451403013 is about 767.1050077012.

Adding to 451403013 its reverse (310304154), we get a palindrome (761707167).

The spelling of 451403013 in words is "four hundred fifty-one million, four hundred three thousand, thirteen".