2947187313 has 48 divisors (see below), whose sum is σ = 4907760000. Its totient is φ = 1669455360.

The previous prime is 2947187281. The next prime is 2947187339. The reversal of 2947187313 is 3137817492.

2947187313 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is not a de Polignac number, because 2947187313 - 2⁵ = 2947187281 is a prime.

It is not an unprimeable number, because it can be changed into a prime (2947183313) by changing a digit.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 5905938 + ... + 5906436.

It is an arithmetic number, because the mean of its divisors is an integer number (102245000).

Almost surely, 2^2947187313 is an apocalyptic number.

It is an amenable number.

2947187313 is a deficient number, since it is larger than the sum of its proper divisors (1960572687).

2947187313 is a wasteful number, since it uses less digits than its factorization.

2947187313 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1142 (or 1139 counting only the distinct ones).

The product of its digits is 254016, while the sum is 45.

The square root of 2947187313 is about 54288.0033985410. The cubic root of 2947187313 is about 1433.7361853698.

The spelling of 2947187313 in words is "two billion, nine hundred forty-seven million, one hundred eighty-seven thousand, three hundred thirteen".