126990967 has 2 divisors, whose sum is σ = 126990968. Its totient is φ = 126990966.

The previous prime is 126990961. The next prime is 126990989. The reversal of 126990967 is 769099621.

It is a weak prime.

It is an emirp because it is prime and its reverse (769099621) is a distict prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-126990967 is a prime.

It is a super-2 number, since 2×126990967² = 32253411399190178, which contains 22 as substring.

It is a self number, because there is not a number n which added to its sum of digits gives 126990967.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (126990961) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 63495483 + 63495484.

It is an arithmetic number, because the mean of its divisors is an integer number (63495484).

Almost surely, 2^126990967 is an apocalyptic number.

126990967 is a deficient number, since it is larger than the sum of its proper divisors (1).

126990967 is an equidigital number, since it uses as much as digits as its factorization.

126990967 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 367416, while the sum is 49.

The square root of 126990967 is about 11269.0268878905. The cubic root of 126990967 is about 502.6406520292.

The spelling of 126990967 in words is "one hundred twenty-six million, nine hundred ninety thousand, nine hundred sixty-seven".