2291313147 has 4 divisors (see below), whose sum is σ = 3055084200. Its totient is φ = 1527542096.

The previous prime is 2291313131. The next prime is 2291313161. The reversal of 2291313147 is 7413131922.

2291313147 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 2291313147 - 2⁴ = 2291313131 is a prime.

It is not an unprimeable number, because it can be changed into a prime (2291313127) 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, 381885522 + ... + 381885527.

It is an arithmetic number, because the mean of its divisors is an integer number (763771050).

Almost surely, 2^2291313147 is an apocalyptic number.

2291313147 is a deficient number, since it is larger than the sum of its proper divisors (763771053).

2291313147 is an equidigital number, since it uses as much as digits as its factorization.

2291313147 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 763771052.

The product of its digits is 9072, while the sum is 33.

The square root of 2291313147 is about 47867.6628529115. The cubic root of 2291313147 is about 1318.3421847422.

The spelling of 2291313147 in words is "two billion, two hundred ninety-one million, three hundred thirteen thousand, one hundred forty-seven".