126396899 has 4 divisors (see below), whose sum is σ = 126423600. Its totient is φ = 126370200.

The previous prime is 126396863. The next prime is 126396901. The reversal of 126396899 is 998693621.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 998693621 = 41 ⋅24358381.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-126396899 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 126396899.

It is not an unprimeable number, because it can be changed into a prime (126396499) 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, 4124 + ... + 16425.

It is an arithmetic number, because the mean of its divisors is an integer number (31605900).

Almost surely, 2^126396899 is an apocalyptic number.

126396899 is a deficient number, since it is larger than the sum of its proper divisors (26701).

126396899 is an equidigital number, since it uses as much as digits as its factorization.

126396899 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 26700.

The product of its digits is 1259712, while the sum is 53.

The square root of 126396899 is about 11242.6375464123. The cubic root of 126396899 is about 501.8556367053.

The spelling of 126396899 in words is "one hundred twenty-six million, three hundred ninety-six thousand, eight hundred ninety-nine".