126605339 has 4 divisors (see below), whose sum is σ = 144691824. Its totient is φ = 108518856.

The previous prime is 126605309. The next prime is 126605359. The reversal of 126605339 is 933506621.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 933506621 = 47 ⋅19861843.

It is a cyclic number.

It is not a de Polignac number, because 126605339 - 2¹² = 126601243 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 126605299 and 126605308.

It is not an unprimeable number, because it can be changed into a prime (126605309) 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, 9043232 + ... + 9043245.

It is an arithmetic number, because the mean of its divisors is an integer number (36172956).

Almost surely, 2^126605339 is an apocalyptic number.

126605339 is a deficient number, since it is larger than the sum of its proper divisors (18086485).

126605339 is an equidigital number, since it uses as much as digits as its factorization.

126605339 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 18086484.

The product of its (nonzero) digits is 29160, while the sum is 35.

The square root of 126605339 is about 11251.9037944696. The cubic root of 126605339 is about 502.1313537530.

The spelling of 126605339 in words is "one hundred twenty-six million, six hundred five thousand, three hundred thirty-nine".