126901799 has 2 divisors, whose sum is σ = 126901800. Its totient is φ = 126901798.

The previous prime is 126901763. The next prime is 126901843. The reversal of 126901799 is 997109621.

It is an a-pointer prime, because the next prime (126901843) can be obtained adding 126901799 to its sum of digits (44).

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 126901799 - 2⁸ = 126901543 is a prime.

It is a super-2 number, since 2×126901799² = 32208133178872802, which contains 22 as substring.

It is a Chen prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (126901199) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 63450899 + 63450900.

It is an arithmetic number, because the mean of its divisors is an integer number (63450900).

Almost surely, 2^126901799 is an apocalyptic number.

126901799 is a deficient number, since it is larger than the sum of its proper divisors (1).

126901799 is an equidigital number, since it uses as much as digits as its factorization.

126901799 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 61236, while the sum is 44.

The square root of 126901799 is about 11265.0698621890. The cubic root of 126901799 is about 502.5229797334.

The spelling of 126901799 in words is "one hundred twenty-six million, nine hundred one thousand, seven hundred ninety-nine".