126317806 has 4 divisors (see below), whose sum is σ = 189476712. Its totient is φ = 63158902.

The previous prime is 126317797. The next prime is 126317819. The reversal of 126317806 is 608713621.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 608713621 = 19 ⋅32037559.

It is a super-2 number, since 2×126317806² = 31912376225307272, which contains 22 as substring.

It is a congruent number.

It is an unprimeable number.

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 as a sum of consecutive naturals, namely, 31579450 + ... + 31579453.

It is an arithmetic number, because the mean of its divisors is an integer number (47369178).

Almost surely, 2^126317806 is an apocalyptic number.

126317806 is a deficient number, since it is larger than the sum of its proper divisors (63158906).

126317806 is an equidigital number, since it uses as much as digits as its factorization.

126317806 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 63158905.

The product of its (nonzero) digits is 12096, while the sum is 34.

The square root of 126317806 is about 11239.1194494943. The cubic root of 126317806 is about 501.7509359559.

The spelling of 126317806 in words is "one hundred twenty-six million, three hundred seventeen thousand, eight hundred six".