126126653 has 2 divisors, whose sum is σ = 126126654. Its totient is φ = 126126652.

The previous prime is 126126613. The next prime is 126126661. The reversal of 126126653 is 356621621.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 83850649 + 42276004 = 9157^2 + 6502^2 .

It is a cyclic number.

It is not a de Polignac number, because 126126653 - 2⁸ = 126126397 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (126126613) 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 as a sum of consecutive naturals, namely, 63063326 + 63063327.

It is an arithmetic number, because the mean of its divisors is an integer number (63063327).

Almost surely, 2^126126653 is an apocalyptic number.

It is an amenable number.

126126653 is a deficient number, since it is larger than the sum of its proper divisors (1).

126126653 is an equidigital number, since it uses as much as digits as its factorization.

126126653 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 12960, while the sum is 32.

The square root of 126126653 is about 11230.6123163432. The cubic root of 126126653 is about 501.4977132307.

The spelling of 126126653 in words is "one hundred twenty-six million, one hundred twenty-six thousand, six hundred fifty-three".