1426249171 has 2 divisors, whose sum is σ = 1426249172. Its totient is φ = 1426249170.

The previous prime is 1426249163. The next prime is 1426249211. The reversal of 1426249171 is 1719426241.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 1426249171 - 2³ = 1426249163 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 1426249171.

It is not a weakly prime, because it can be changed into another prime (1426249151) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 713124585 + 713124586.

It is an arithmetic number, because the mean of its divisors is an integer number (713124586).

Almost surely, 2^1426249171 is an apocalyptic number.

1426249171 is a deficient number, since it is larger than the sum of its proper divisors (1).

1426249171 is an equidigital number, since it uses as much as digits as its factorization.

1426249171 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 24192, while the sum is 37.

The square root of 1426249171 is about 37765.7142260013. The cubic root of 1426249171 is about 1125.6372806752.

The spelling of 1426249171 in words is "one billion, four hundred twenty-six million, two hundred forty-nine thousand, one hundred seventy-one".