126762731 has 2 divisors, whose sum is σ = 126762732. Its totient is φ = 126762730.

The previous prime is 126762709. The next prime is 126762743. The reversal of 126762731 is 137267621.

It is a strong prime.

It is an emirp because it is prime and its reverse (137267621) is a distict prime.

It is a cyclic number.

It is not a de Polignac number, because 126762731 - 2²² = 122568427 is a prime.

It is a super-2 number, since 2×126762731² = 32137579941156722, which contains 22 as substring.

It is a Chen prime.

It is a junction number, because it is equal to n+sod(n) for n = 126762691 and 126762700.

It is not a weakly prime, because it can be changed into another prime (126762791) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 63381365 + 63381366.

It is an arithmetic number, because the mean of its divisors is an integer number (63381366).

Almost surely, 2^126762731 is an apocalyptic number.

126762731 is a deficient number, since it is larger than the sum of its proper divisors (1).

126762731 is an equidigital number, since it uses as much as digits as its factorization.

126762731 is an evil number, because the sum of its binary digits is even.

The product of its digits is 21168, while the sum is 35.

The square root of 126762731 is about 11258.8956385606. The cubic root of 126762731 is about 502.3393458524.

The spelling of 126762731 in words is "one hundred twenty-six million, seven hundred sixty-two thousand, seven hundred thirty-one".