126212713 has 4 divisors (see below), whose sum is σ = 137686608. Its totient is φ = 114738820.

The previous prime is 126212711. The next prime is 126212717. The reversal of 126212713 is 317212621.

It is a happy number.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is not a de Polignac number, because 126212713 - 2¹ = 126212711 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (126212711) 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, 5736931 + ... + 5736952.

It is an arithmetic number, because the mean of its divisors is an integer number (34421652).

Almost surely, 2^126212713 is an apocalyptic number.

It is an amenable number.

126212713 is a deficient number, since it is larger than the sum of its proper divisors (11473895).

126212713 is a wasteful number, since it uses less digits than its factorization.

126212713 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 11473894.

The product of its digits is 1008, while the sum is 25.

The square root of 126212713 is about 11234.4431548698. The cubic root of 126212713 is about 501.6117496105.

The spelling of 126212713 in words is "one hundred twenty-six million, two hundred twelve thousand, seven hundred thirteen".