431045313 has 4 divisors (see below), whose sum is σ = 574727088. Its totient is φ = 287363540.

The previous prime is 431045291. The next prime is 431045333. The reversal of 431045313 is 313540134.

It is a happy number.

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 431045313 - 2⁵ = 431045281 is a prime.

It is not an unprimeable number, because it can be changed into a prime (431045333) 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, 71840883 + ... + 71840888.

It is an arithmetic number, because the mean of its divisors is an integer number (143681772).

Almost surely, 2^431045313 is an apocalyptic number.

It is an amenable number.

431045313 is a deficient number, since it is larger than the sum of its proper divisors (143681775).

431045313 is a wasteful number, since it uses less digits than its factorization.

431045313 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 143681774.

The product of its (nonzero) digits is 2160, while the sum is 24.

The square root of 431045313 is about 20761.6307885484. The cubic root of 431045313 is about 755.3953533670.

Adding to 431045313 its reverse (313540134), we get a palindrome (744585447).

The spelling of 431045313 in words is "four hundred thirty-one million, forty-five thousand, three hundred thirteen".