2131407727 has 2 divisors, whose sum is σ = 2131407728. Its totient is φ = 2131407726.

The previous prime is 2131407721. The next prime is 2131407757. The reversal of 2131407727 is 7277041312.

It is a weak prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-2131407727 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 2131407692 and 2131407701.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (2131407721) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 1065703863 + 1065703864.

It is an arithmetic number, because the mean of its divisors is an integer number (1065703864).

Almost surely, 2^2131407727 is an apocalyptic number.

2131407727 is a deficient number, since it is larger than the sum of its proper divisors (1).

2131407727 is an equidigital number, since it uses as much as digits as its factorization.

2131407727 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 16464, while the sum is 34.

The square root of 2131407727 is about 46167.1715291288. The cubic root of 2131407727 is about 1286.9317394473.

The spelling of 2131407727 in words is "two billion, one hundred thirty-one million, four hundred seven thousand, seven hundred twenty-seven".