126795731 has 2 divisors, whose sum is σ = 126795732. Its totient is φ = 126795730.

The previous prime is 126795727. The next prime is 126795733. The reversal of 126795731 is 137597621.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 126795731 - 2² = 126795727 is a prime.

It is a super-2 number, since 2×126795731² = 32154314799648722, which contains 22 as substring.

It is a Sophie Germain prime.

Together with 126795733, it forms a pair of twin primes.

It is a Chen prime.

It is not a weakly prime, because it can be changed into another prime (126795733) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 63397865 + 63397866.

It is an arithmetic number, because the mean of its divisors is an integer number (63397866).

Almost surely, 2^126795731 is an apocalyptic number.

126795731 is a deficient number, since it is larger than the sum of its proper divisors (1).

126795731 is an equidigital number, since it uses as much as digits as its factorization.

126795731 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 79380, while the sum is 41.

The square root of 126795731 is about 11260.3610510498. The cubic root of 126795731 is about 502.3829332170.

The spelling of 126795731 in words is "one hundred twenty-six million, seven hundred ninety-five thousand, seven hundred thirty-one".