126916199 has 2 divisors, whose sum is σ = 126916200. Its totient is φ = 126916198.

The previous prime is 126916189. The next prime is 126916241. The reversal of 126916199 is 991619621.

It is a weak prime.

It is an emirp because it is prime and its reverse (991619621) is a distict prime.

It is a cyclic number.

It is not a de Polignac number, because 126916199 - 2⁴ = 126916183 is a prime.

It is a super-2 number, since 2×126916199² = 32215443137215202, which contains 22 as substring.

It is a Sophie Germain prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (126916129) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 63458099 + 63458100.

It is an arithmetic number, because the mean of its divisors is an integer number (63458100).

Almost surely, 2^126916199 is an apocalyptic number.

126916199 is a deficient number, since it is larger than the sum of its proper divisors (1).

126916199 is an equidigital number, since it uses as much as digits as its factorization.

126916199 is an evil number, because the sum of its binary digits is even.

The product of its digits is 52488, while the sum is 44.

The square root of 126916199 is about 11265.7089878977. The cubic root of 126916199 is about 502.5419867064.

The spelling of 126916199 in words is "one hundred twenty-six million, nine hundred sixteen thousand, one hundred ninety-nine".