315403423 has 4 divisors (see below), whose sum is σ = 317412520. Its totient is φ = 313394328.

The previous prime is 315403411. The next prime is 315403427. The reversal of 315403423 is 324304513.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 315403423 - 2¹⁷ = 315272351 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 (315403427) 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, 1004313 + ... + 1004626.

It is an arithmetic number, because the mean of its divisors is an integer number (79353130).

Almost surely, 2^315403423 is an apocalyptic number.

315403423 is a deficient number, since it is larger than the sum of its proper divisors (2009097).

315403423 is a wasteful number, since it uses less digits than its factorization.

315403423 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2009096.

The product of its (nonzero) digits is 4320, while the sum is 25.

The square root of 315403423 is about 17759.6008682628. The cubic root of 315403423 is about 680.6995561742.

Adding to 315403423 its reverse (324304513), we get a palindrome (639707936).

The spelling of 315403423 in words is "three hundred fifteen million, four hundred three thousand, four hundred twenty-three".