126215459 has 2 divisors, whose sum is σ = 126215460. Its totient is φ = 126215458.

The previous prime is 126215407. The next prime is 126215483. The reversal of 126215459 is 954512621.

It is a happy number.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 126215459 - 2¹² = 126211363 is a prime.

It is a Chen prime.

It is not a weakly prime, because it can be changed into another prime (126215489) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 63107729 + 63107730.

It is an arithmetic number, because the mean of its divisors is an integer number (63107730).

Almost surely, 2^126215459 is an apocalyptic number.

126215459 is a deficient number, since it is larger than the sum of its proper divisors (1).

126215459 is an equidigital number, since it uses as much as digits as its factorization.

126215459 is an evil number, because the sum of its binary digits is even.

The product of its digits is 21600, while the sum is 35.

The square root of 126215459 is about 11234.5653676500. The cubic root of 126215459 is about 501.6153874265.

The spelling of 126215459 in words is "one hundred twenty-six million, two hundred fifteen thousand, four hundred fifty-nine".