126670613 has 2 divisors, whose sum is σ = 126670614. Its totient is φ = 126670612.

The previous prime is 126670589. The next prime is 126670631. The reversal of 126670613 is 316076621.

Together with next prime (126670631) it forms an Ormiston pair, because they use the same digits, order apart.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 111978724 + 14691889 = 10582^2 + 3833^2 .

It is a cyclic number.

It is not a de Polignac number, because 126670613 - 2¹⁰ = 126669589 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 126670613.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (126670013) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 63335306 + 63335307.

It is an arithmetic number, because the mean of its divisors is an integer number (63335307).

Almost surely, 2^126670613 is an apocalyptic number.

It is an amenable number.

126670613 is a deficient number, since it is larger than the sum of its proper divisors (1).

126670613 is an equidigital number, since it uses as much as digits as its factorization.

126670613 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 9072, while the sum is 32.

The square root of 126670613 is about 11254.8039965163. The cubic root of 126670613 is about 502.2176336604.

The spelling of 126670613 in words is "one hundred twenty-six million, six hundred seventy thousand, six hundred thirteen".