126000013 has 2 divisors, whose sum is σ = 126000014. Its totient is φ = 126000012.

The previous prime is 125999959. The next prime is 126000029. The reversal of 126000013 is 310000621.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 125507209 + 492804 = 11203^2 + 702^2 .

It is a cyclic number.

It is not a de Polignac number, because 126000013 - 2⁹ = 125999501 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 125999957 and 126000002.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (126000053) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 63000006 + 63000007.

It is an arithmetic number, because the mean of its divisors is an integer number (63000007).

Almost surely, 2^126000013 is an apocalyptic number.

It is an amenable number.

126000013 is a deficient number, since it is larger than the sum of its proper divisors (1).

126000013 is an equidigital number, since it uses as much as digits as its factorization.

126000013 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 36, while the sum is 13.

The square root of 126000013 is about 11224.9727393878. The cubic root of 126000013 is about 501.3298107380.

Adding to 126000013 its reverse (310000621), we get a palindrome (436000634).

The spelling of 126000013 in words is "one hundred twenty-six million, thirteen", and thus it is an aban number.