315720473 has 8 divisors (see below), whose sum is σ = 334765920. Its totient is φ = 296917920.

The previous prime is 315720467. The next prime is 315720497. The reversal of 315720473 is 374027513.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 315720473 - 2⁶ = 315720409 is a prime.

It is a Duffinian number.

It is a Curzon number.

It is not an unprimeable number, because it can be changed into a prime (315720403) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 58043 + ... + 63248.

It is an arithmetic number, because the mean of its divisors is an integer number (41845740).

Almost surely, 2^315720473 is an apocalyptic number.

It is an amenable number.

315720473 is a deficient number, since it is larger than the sum of its proper divisors (19045447).

315720473 is a wasteful number, since it uses less digits than its factorization.

315720473 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 121447.

The product of its (nonzero) digits is 17640, while the sum is 32.

The square root of 315720473 is about 17768.5247840106. The cubic root of 315720473 is about 680.9275641842.

Adding to 315720473 its reverse (374027513), we get a palindrome (689747986).

The spelling of 315720473 in words is "three hundred fifteen million, seven hundred twenty thousand, four hundred seventy-three".