126730863 has 12 divisors (see below), whose sum is σ = 209206608. Its totient is φ = 72417600.

The previous prime is 126730859. The next prime is 126730867. The reversal of 126730863 is 368037621.

It is a happy number.

It is an interprime number because it is at equal distance from previous prime (126730859) and next prime (126730867).

It is not a de Polignac number, because 126730863 - 2² = 126730859 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (126730867) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 1005738 + ... + 1005863.

It is an arithmetic number, because the mean of its divisors is an integer number (17433884).

Almost surely, 2^126730863 is an apocalyptic number.

126730863 is a deficient number, since it is larger than the sum of its proper divisors (82475745).

126730863 is a wasteful number, since it uses less digits than its factorization.

126730863 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2011614 (or 2011611 counting only the distinct ones).

The product of its (nonzero) digits is 36288, while the sum is 36.

The square root of 126730863 is about 11257.4803131074. The cubic root of 126730863 is about 502.2972464860.

The spelling of 126730863 in words is "one hundred twenty-six million, seven hundred thirty thousand, eight hundred sixty-three".