126531767 has 2 divisors, whose sum is σ = 126531768. Its totient is φ = 126531766.

The previous prime is 126531733. The next prime is 126531787. The reversal of 126531767 is 767135621.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 126531767 - 2¹⁴ = 126515383 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 126531767.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (126531707) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 63265883 + 63265884.

It is an arithmetic number, because the mean of its divisors is an integer number (63265884).

Almost surely, 2^126531767 is an apocalyptic number.

126531767 is a deficient number, since it is larger than the sum of its proper divisors (1).

126531767 is an equidigital number, since it uses as much as digits as its factorization.

126531767 is an evil number, because the sum of its binary digits is even.

The product of its digits is 52920, while the sum is 38.

The square root of 126531767 is about 11248.6340059582. The cubic root of 126531767 is about 502.0340698982.

The spelling of 126531767 in words is "one hundred twenty-six million, five hundred thirty-one thousand, seven hundred sixty-seven".