126939319 has 4 divisors (see below), whose sum is σ = 136703896. Its totient is φ = 117174744.

The previous prime is 126939313. The next prime is 126939331. The reversal of 126939319 is 913939621.

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 126939319 - 2⁹ = 126938807 is a prime.

It is a super-2 number, since 2×126939319² = 32227181416367522, which contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (126939313) 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, 4882269 + ... + 4882294.

It is an arithmetic number, because the mean of its divisors is an integer number (34175974).

Almost surely, 2^126939319 is an apocalyptic number.

126939319 is a deficient number, since it is larger than the sum of its proper divisors (9764577).

126939319 is an equidigital number, since it uses as much as digits as its factorization.

126939319 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 9764576.

The product of its digits is 78732, while the sum is 43.

The square root of 126939319 is about 11266.7350638950. The cubic root of 126939319 is about 502.5725004506.

The spelling of 126939319 in words is "one hundred twenty-six million, nine hundred thirty-nine thousand, three hundred nineteen".