126385899 has 4 divisors (see below), whose sum is σ = 168514536. Its totient is φ = 84257264.

The previous prime is 126385879. The next prime is 126385913. The reversal of 126385899 is 998583621.

It is a happy number.

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

It is a cyclic number.

It is not a de Polignac number, because 126385899 - 2¹³ = 126377707 is a prime.

It is not an unprimeable number, because it can be changed into a prime (126385879) 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 in 3 ways as a sum of consecutive naturals, for example, 21064314 + ... + 21064319.

It is an arithmetic number, because the mean of its divisors is an integer number (42128634).

Almost surely, 2^126385899 is an apocalyptic number.

126385899 is a deficient number, since it is larger than the sum of its proper divisors (42128637).

126385899 is an equidigital number, since it uses as much as digits as its factorization.

126385899 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 42128636.

The product of its digits is 933120, while the sum is 51.

The square root of 126385899 is about 11242.1483267212. The cubic root of 126385899 is about 501.8410778772.

The spelling of 126385899 in words is "one hundred twenty-six million, three hundred eighty-five thousand, eight hundred ninety-nine".