126974291 has 2 divisors, whose sum is σ = 126974292. Its totient is φ = 126974290.

The previous prime is 126974257. The next prime is 126974297. The reversal of 126974291 is 192479621.

It is a strong prime.

It is an emirp because it is prime and its reverse (192479621) is a distict prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-126974291 is a prime.

It is a super-2 number, since 2×126974291² = 32244941149905362, which contains 22 as substring.

It is a Chen prime.

It is not a weakly prime, because it can be changed into another prime (126974297) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 63487145 + 63487146.

It is an arithmetic number, because the mean of its divisors is an integer number (63487146).

Almost surely, 2^126974291 is an apocalyptic number.

126974291 is a deficient number, since it is larger than the sum of its proper divisors (1).

126974291 is an equidigital number, since it uses as much as digits as its factorization.

126974291 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 54432, while the sum is 41.

The square root of 126974291 is about 11268.2869594273. The cubic root of 126974291 is about 502.6186494080.

The spelling of 126974291 in words is "one hundred twenty-six million, nine hundred seventy-four thousand, two hundred ninety-one".