2308135957 has 4 divisors (see below), whose sum is σ = 2311346880. Its totient is φ = 2304925036.

The previous prime is 2308135937. The next prime is 2308135987. The reversal of 2308135957 is 7595318032.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-2308135957 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2308135937) 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, 1604383 + ... + 1605820.

It is an arithmetic number, because the mean of its divisors is an integer number (577836720).

Almost surely, 2^2308135957 is an apocalyptic number.

It is an amenable number.

2308135957 is a deficient number, since it is larger than the sum of its proper divisors (3210923).

2308135957 is an equidigital number, since it uses as much as digits as its factorization.

2308135957 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3210922.

The product of its (nonzero) digits is 226800, while the sum is 43.

The square root of 2308135957 is about 48043.0635680116. The cubic root of 2308135957 is about 1321.5607413110.

The spelling of 2308135957 in words is "two billion, three hundred eight million, one hundred thirty-five thousand, nine hundred fifty-seven".