126492013 has 4 divisors (see below), whose sum is σ = 126533340. Its totient is φ = 126450688.

The previous prime is 126492001. The next prime is 126492017. The reversal of 126492013 is 310294621.

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 92409769 + 34082244 = 9613^2 + 5838^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-126492013 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 (126492017) 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, 15670 + ... + 22327.

It is an arithmetic number, because the mean of its divisors is an integer number (31633335).

Almost surely, 2^126492013 is an apocalyptic number.

It is an amenable number.

126492013 is a deficient number, since it is larger than the sum of its proper divisors (41327).

126492013 is an equidigital number, since it uses as much as digits as its factorization.

126492013 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 41326.

The product of its (nonzero) digits is 2592, while the sum is 28.

The square root of 126492013 is about 11246.8668081382. The cubic root of 126492013 is about 501.9814877064.

The spelling of 126492013 in words is "one hundred twenty-six million, four hundred ninety-two thousand, thirteen".