126833491 has 2 divisors, whose sum is σ = 126833492. Its totient is φ = 126833490.

The previous prime is 126833471. The next prime is 126833513. The reversal of 126833491 is 194338621.

It is a weak prime.

It is an emirp because it is prime and its reverse (194338621) is a distict prime.

It is a cyclic number.

It is not a de Polignac number, because 126833491 - 2¹⁷ = 126702419 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 126833491.

It is not a weakly prime, because it can be changed into another prime (126833411) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 63416745 + 63416746.

It is an arithmetic number, because the mean of its divisors is an integer number (63416746).

Almost surely, 2^126833491 is an apocalyptic number.

126833491 is a deficient number, since it is larger than the sum of its proper divisors (1).

126833491 is an equidigital number, since it uses as much as digits as its factorization.

126833491 is an evil number, because the sum of its binary digits is even.

The product of its digits is 31104, while the sum is 37.

The square root of 126833491 is about 11262.0376042704. The cubic root of 126833491 is about 502.4327984520.

The spelling of 126833491 in words is "one hundred twenty-six million, eight hundred thirty-three thousand, four hundred ninety-one".