2131710727 has 2 divisors, whose sum is σ = 2131710728. Its totient is φ = 2131710726.

The previous prime is 2131710689. The next prime is 2131710781. The reversal of 2131710727 is 7270171312.

It is a happy number.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 2131710727 - 2⁷ = 2131710599 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (2131710797) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 1065855363 + 1065855364.

It is an arithmetic number, because the mean of its divisors is an integer number (1065855364).

Almost surely, 2^2131710727 is an apocalyptic number.

2131710727 is a deficient number, since it is larger than the sum of its proper divisors (1).

2131710727 is an equidigital number, since it uses as much as digits as its factorization.

2131710727 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 4116, while the sum is 31.

The square root of 2131710727 is about 46170.4529650728. The cubic root of 2131710727 is about 1286.9927197775.

The spelling of 2131710727 in words is "two billion, one hundred thirty-one million, seven hundred ten thousand, seven hundred twenty-seven".