315730047 has 8 divisors (see below), whose sum is σ = 435489840. Its totient is φ = 203228480.

The previous prime is 315730031. The next prime is 315730073. The reversal of 315730047 is 740037513.

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 315730047 - 2⁴ = 315730031 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 315729996 and 315730023.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (315730147) 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, 1814454 + ... + 1814627.

It is an arithmetic number, because the mean of its divisors is an integer number (54436230).

Almost surely, 2^315730047 is an apocalyptic number.

315730047 is a deficient number, since it is larger than the sum of its proper divisors (119759793).

315730047 is a wasteful number, since it uses less digits than its factorization.

315730047 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3629113.

The product of its (nonzero) digits is 8820, while the sum is 30.

The square root of 315730047 is about 17768.7941909405. The cubic root of 315730047 is about 680.9344469968.

The spelling of 315730047 in words is "three hundred fifteen million, seven hundred thirty thousand, forty-seven".