126607539 has 4 divisors (see below), whose sum is σ = 168810056. Its totient is φ = 84405024.

The previous prime is 126607531. The next prime is 126607541. The reversal of 126607539 is 935706621.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 935706621 = 3 ⋅311902207.

It is not a de Polignac number, because 126607539 - 2³ = 126607531 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 126607497 and 126607506.

It is not an unprimeable number, because it can be changed into a prime (126607531) 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, 21101254 + ... + 21101259.

It is an arithmetic number, because the mean of its divisors is an integer number (42202514).

Almost surely, 2^126607539 is an apocalyptic number.

126607539 is a deficient number, since it is larger than the sum of its proper divisors (42202517).

126607539 is an equidigital number, since it uses as much as digits as its factorization.

126607539 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 42202516.

The product of its (nonzero) digits is 68040, while the sum is 39.

The square root of 126607539 is about 11252.0015552790. The cubic root of 126607539 is about 502.1342622206.

The spelling of 126607539 in words is "one hundred twenty-six million, six hundred seven thousand, five hundred thirty-nine".