315741947 has 4 divisors (see below), whose sum is σ = 317344896. Its totient is φ = 314139000.

The previous prime is 315741919. The next prime is 315741973. The reversal of 315741947 is 749147513.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 749147513 = 23 ⋅32571631.

It is a cyclic number.

It is not a de Polignac number, because 315741947 - 2⁶ = 315741883 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (315741847) 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, 801179 + ... + 801572.

It is an arithmetic number, because the mean of its divisors is an integer number (79336224).

Almost surely, 2^315741947 is an apocalyptic number.

315741947 is a deficient number, since it is larger than the sum of its proper divisors (1602949).

315741947 is a wasteful number, since it uses less digits than its factorization.

315741947 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1602948.

The product of its digits is 105840, while the sum is 41.

The square root of 315741947 is about 17769.1290444974. The cubic root of 315741947 is about 680.9430017925.

The spelling of 315741947 in words is "three hundred fifteen million, seven hundred forty-one thousand, nine hundred forty-seven".