315245423 has 4 divisors (see below), whose sum is σ = 317179608. Its totient is φ = 313311240.

The previous prime is 315245407. The next prime is 315245443. The reversal of 315245423 is 324542513.

It is a happy number.

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 315245423 - 2⁴ = 315245407 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 (315245443) 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, 966848 + ... + 967173.

It is an arithmetic number, because the mean of its divisors is an integer number (79294902).

Almost surely, 2^315245423 is an apocalyptic number.

315245423 is a deficient number, since it is larger than the sum of its proper divisors (1934185).

315245423 is a wasteful number, since it uses less digits than its factorization.

315245423 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1934184.

The product of its digits is 14400, while the sum is 29.

The square root of 315245423 is about 17755.1520128666. The cubic root of 315245423 is about 680.5858726755.

Adding to 315245423 its reverse (324542513), we get a palindrome (639787936).

The spelling of 315245423 in words is "three hundred fifteen million, two hundred forty-five thousand, four hundred twenty-three".