126704213 has 8 divisors (see below), whose sum is σ = 135542232. Its totient is φ = 118020096.

The previous prime is 126704203. The next prime is 126704233. The reversal of 126704213 is 312407621.

It can be written as a sum of positive squares in 4 ways, for example, as 28654609 + 98049604 = 5353^2 + 9902^2 .

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 126704213 - 2¹⁰ = 126703189 is a prime.

It is a Duffinian number.

It is a Curzon number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (126704203) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 36770 + ... + 40067.

It is an arithmetic number, because the mean of its divisors is an integer number (16942779).

Almost surely, 2^126704213 is an apocalyptic number.

It is an amenable number.

126704213 is a deficient number, since it is larger than the sum of its proper divisors (8838019).

126704213 is an equidigital number, since it uses as much as digits as its factorization.

126704213 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 76951.

The product of its (nonzero) digits is 2016, while the sum is 26.

The square root of 126704213 is about 11256.2965934627. The cubic root of 126704213 is about 502.2620349631.

The spelling of 126704213 in words is "one hundred twenty-six million, seven hundred four thousand, two hundred thirteen".