126869131 has 2 divisors, whose sum is σ = 126869132. Its totient is φ = 126869130.

The previous prime is 126869111. The next prime is 126869159. The reversal of 126869131 is 131968621.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 126869131 - 2⁷ = 126869003 is a prime.

It is a super-2 number, since 2×126869131² = 32191552801390322, which contains 22 as substring.

It is not a weakly prime, because it can be changed into another prime (126869101) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 63434565 + 63434566.

It is an arithmetic number, because the mean of its divisors is an integer number (63434566).

Almost surely, 2^126869131 is an apocalyptic number.

126869131 is a deficient number, since it is larger than the sum of its proper divisors (1).

126869131 is an equidigital number, since it uses as much as digits as its factorization.

126869131 is an evil number, because the sum of its binary digits is even.

The product of its digits is 15552, while the sum is 37.

The square root of 126869131 is about 11263.6198000465. The cubic root of 126869131 is about 502.4798549716.

The spelling of 126869131 in words is "one hundred twenty-six million, eight hundred sixty-nine thousand, one hundred thirty-one".