126390133 has 2 divisors, whose sum is σ = 126390134. Its totient is φ = 126390132.

The previous prime is 126390049. The next prime is 126390137. The reversal of 126390133 is 331093621.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 126382564 + 7569 = 11242^2 + 87^2 .

It is an emirp because it is prime and its reverse (331093621) is a distict prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-126390133 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (126390137) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 63195066 + 63195067.

It is an arithmetic number, because the mean of its divisors is an integer number (63195067).

Almost surely, 2^126390133 is an apocalyptic number.

It is an amenable number.

126390133 is a deficient number, since it is larger than the sum of its proper divisors (1).

126390133 is an equidigital number, since it uses as much as digits as its factorization.

126390133 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 2916, while the sum is 28.

The square root of 126390133 is about 11242.3366343479. The cubic root of 126390133 is about 501.8466818025.

The spelling of 126390133 in words is "one hundred twenty-six million, three hundred ninety thousand, one hundred thirty-three".