126940783 has 2 divisors, whose sum is σ = 126940784. Its totient is φ = 126940782.

The previous prime is 126940771. The next prime is 126940799. The reversal of 126940783 is 387049621.

It is a weak prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-126940783 is a prime.

It is a super-2 number, since 2×126940783² = 32227924777306178, which contains 22 as substring.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (126940733) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 63470391 + 63470392.

It is an arithmetic number, because the mean of its divisors is an integer number (63470392).

Almost surely, 2^126940783 is an apocalyptic number.

126940783 is a deficient number, since it is larger than the sum of its proper divisors (1).

126940783 is an equidigital number, since it uses as much as digits as its factorization.

126940783 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 72576, while the sum is 40.

The square root of 126940783 is about 11266.8000337274. The cubic root of 126940783 is about 502.5744325111.

The spelling of 126940783 in words is "one hundred twenty-six million, nine hundred forty thousand, seven hundred eighty-three".