126446213 has 4 divisors (see below), whose sum is σ = 127606380. Its totient is φ = 125286048.

The previous prime is 126446191. The next prime is 126446231. The reversal of 126446213 is 312644621.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in 2 ways, for example, as 61434244 + 65011969 = 7838^2 + 8063^2 .

It is a cyclic number.

It is not a de Polignac number, because 126446213 - 2¹⁶ = 126380677 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (126446413) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 579920 + ... + 580137.

It is an arithmetic number, because the mean of its divisors is an integer number (31901595).

Almost surely, 2^126446213 is an apocalyptic number.

It is an amenable number.

126446213 is a deficient number, since it is larger than the sum of its proper divisors (1160167).

126446213 is a wasteful number, since it uses less digits than its factorization.

126446213 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1160166.

The product of its digits is 6912, while the sum is 29.

The square root of 126446213 is about 11244.8305011681. The cubic root of 126446213 is about 501.9208948754.

The spelling of 126446213 in words is "one hundred twenty-six million, four hundred forty-six thousand, two hundred thirteen".