126391459 has 2 divisors, whose sum is σ = 126391460. Its totient is φ = 126391458.

The previous prime is 126391429. The next prime is 126391523. The reversal of 126391459 is 954193621.

It is a weak prime.

It is an emirp because it is prime and its reverse (954193621) is a distict prime.

It is a cyclic number.

It is not a de Polignac number, because 126391459 - 2¹⁵ = 126358691 is a prime.

It is not a weakly prime, because it can be changed into another prime (126391409) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 63195729 + 63195730.

It is an arithmetic number, because the mean of its divisors is an integer number (63195730).

Almost surely, 2^126391459 is an apocalyptic number.

126391459 is a deficient number, since it is larger than the sum of its proper divisors (1).

126391459 is an equidigital number, since it uses as much as digits as its factorization.

126391459 is an evil number, because the sum of its binary digits is even.

The product of its digits is 58320, while the sum is 40.

The square root of 126391459 is about 11242.3956076986. The cubic root of 126391459 is about 501.8484368086.

The spelling of 126391459 in words is "one hundred twenty-six million, three hundred ninety-one thousand, four hundred fifty-nine".