126837589 has 2 divisors, whose sum is σ = 126837590. Its totient is φ = 126837588.

The previous prime is 126837563. The next prime is 126837593. The reversal of 126837589 is 985738621.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 122279364 + 4558225 = 11058^2 + 2135^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-126837589 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (126831589) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 63418794 + 63418795.

It is an arithmetic number, because the mean of its divisors is an integer number (63418795).

Almost surely, 2^126837589 is an apocalyptic number.

It is an amenable number.

126837589 is a deficient number, since it is larger than the sum of its proper divisors (1).

126837589 is an equidigital number, since it uses as much as digits as its factorization.

126837589 is an evil number, because the sum of its binary digits is even.

The product of its digits is 725760, while the sum is 49.

The square root of 126837589 is about 11262.2195414581. The cubic root of 126837589 is about 502.4382096080.

The spelling of 126837589 in words is "one hundred twenty-six million, eight hundred thirty-seven thousand, five hundred eighty-nine".