2315515247 has 8 divisors (see below), whose sum is σ = 2323654992. Its totient is φ = 2307390400.

The previous prime is 2315515229. The next prime is 2315515273. The reversal of 2315515247 is 7425155132.

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 2315515247 - 2⁶ = 2315515183 is a prime.

It is a super-2 number, since 2×2315515247² = 10723221718178942018, which contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2315515217) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 370553 + ... + 376749.

It is an arithmetic number, because the mean of its divisors is an integer number (290456874).

Almost surely, 2^2315515247 is an apocalyptic number.

2315515247 is a deficient number, since it is larger than the sum of its proper divisors (8139745).

2315515247 is an equidigital number, since it uses as much as digits as its factorization.

2315515247 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 7449.

The product of its digits is 42000, while the sum is 35.

The square root of 2315515247 is about 48119.8009867040. The cubic root of 2315515247 is about 1322.9676205328.

The spelling of 2315515247 in words is "two billion, three hundred fifteen million, five hundred fifteen thousand, two hundred forty-seven".