126768899 has 4 divisors (see below), whose sum is σ = 127109136. Its totient is φ = 126428664.

The previous prime is 126768871. The next prime is 126768911. The reversal of 126768899 is 998867621.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-126768899 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (126768839) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 169559 + ... + 170304.

It is an arithmetic number, because the mean of its divisors is an integer number (31777284).

Almost surely, 2^126768899 is an apocalyptic number.

126768899 is a deficient number, since it is larger than the sum of its proper divisors (340237).

126768899 is an equidigital number, since it uses as much as digits as its factorization.

126768899 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 340236.

The product of its digits is 2612736, while the sum is 56.

The square root of 126768899 is about 11259.1695519696. The cubic root of 126768899 is about 502.3474933019.

The spelling of 126768899 in words is "one hundred twenty-six million, seven hundred sixty-eight thousand, eight hundred ninety-nine".