1420125647 has 2 divisors, whose sum is σ = 1420125648. Its totient is φ = 1420125646.

The previous prime is 1420125589. The next prime is 1420125659. The reversal of 1420125647 is 7465210241.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 1420125647 - 2¹⁸ = 1419863503 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (1420125247) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 710062823 + 710062824.

It is an arithmetic number, because the mean of its divisors is an integer number (710062824).

Almost surely, 2^1420125647 is an apocalyptic number.

1420125647 is a deficient number, since it is larger than the sum of its proper divisors (1).

1420125647 is an equidigital number, since it uses as much as digits as its factorization.

1420125647 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 13440, while the sum is 32.

The square root of 1420125647 is about 37684.5544885434. The cubic root of 1420125647 is about 1124.0240152985.

Adding to 1420125647 its reverse (7465210241), we get a palindrome (8885335888).

The spelling of 1420125647 in words is "one billion, four hundred twenty million, one hundred twenty-five thousand, six hundred forty-seven".