126013133 has 2 divisors, whose sum is σ = 126013134. Its totient is φ = 126013132.

The previous prime is 126013123. The next prime is 126013141. The reversal of 126013133 is 331310621.

It is a happy number.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 121594729 + 4418404 = 11027^2 + 2102^2 .

It is a cyclic number.

It is not a de Polignac number, because 126013133 - 2¹⁴ = 125996749 is a prime.

It is a Chen prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (126013123) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 63006566 + 63006567.

It is an arithmetic number, because the mean of its divisors is an integer number (63006567).

Almost surely, 2^126013133 is an apocalyptic number.

It is an amenable number.

126013133 is a deficient number, since it is larger than the sum of its proper divisors (1).

126013133 is an equidigital number, since it uses as much as digits as its factorization.

126013133 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 324, while the sum is 20.

The square root of 126013133 is about 11225.5571353942. The cubic root of 126013133 is about 501.3472107860.

Adding to 126013133 its reverse (331310621), we get a palindrome (457323754).

The spelling of 126013133 in words is "one hundred twenty-six million, thirteen thousand, one hundred thirty-three".