126677531 has 2 divisors, whose sum is σ = 126677532. Its totient is φ = 126677530.

The previous prime is 126677519. The next prime is 126677567. The reversal of 126677531 is 135776621.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 126677531 - 2¹⁴ = 126661147 is a prime.

It is a super-2 number, since 2×126677531² = 32094393720511922, which contains 22 as substring.

It is not a weakly prime, because it can be changed into another prime (126677581) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 63338765 + 63338766.

It is an arithmetic number, because the mean of its divisors is an integer number (63338766).

Almost surely, 2^126677531 is an apocalyptic number.

126677531 is a deficient number, since it is larger than the sum of its proper divisors (1).

126677531 is an equidigital number, since it uses as much as digits as its factorization.

126677531 is an odious number, because the sum of its binary digits is odd.

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

The square root of 126677531 is about 11255.1113277479. Note that the first 3 decimals coincide. The cubic root of 126677531 is about 502.2267762133.

The spelling of 126677531 in words is "one hundred twenty-six million, six hundred seventy-seven thousand, five hundred thirty-one".