126287879 has 2 divisors, whose sum is σ = 126287880. Its totient is φ = 126287878.

The previous prime is 126287809. The next prime is 126287929. The reversal of 126287879 is 978782621.

It is an a-pointer prime, because the next prime (126287929) can be obtained adding 126287879 to its sum of digits (50).

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 126287879 - 2²⁴ = 109510663 is a prime.

It is a Chen prime.

It is a zygodrome in base 2.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (126287809) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 63143939 + 63143940.

It is an arithmetic number, because the mean of its divisors is an integer number (63143940).

Almost surely, 2^126287879 is an apocalyptic number.

126287879 is a deficient number, since it is larger than the sum of its proper divisors (1).

126287879 is an equidigital number, since it uses as much as digits as its factorization.

126287879 is an evil number, because the sum of its binary digits is even.

The product of its digits is 677376, while the sum is 50.

The square root of 126287879 is about 11237.7879940850. The cubic root of 126287879 is about 501.7113081665.

The spelling of 126287879 in words is "one hundred twenty-six million, two hundred eighty-seven thousand, eight hundred seventy-nine".