1425085591 has 2 divisors, whose sum is σ = 1425085592. Its totient is φ = 1425085590.

The previous prime is 1425085579. The next prime is 1425085619. The reversal of 1425085591 is 1955805241.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 1425085591 - 2⁷ = 1425085463 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (1425085561) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 712542795 + 712542796.

It is an arithmetic number, because the mean of its divisors is an integer number (712542796).

Almost surely, 2^1425085591 is an apocalyptic number.

1425085591 is a deficient number, since it is larger than the sum of its proper divisors (1).

1425085591 is an equidigital number, since it uses as much as digits as its factorization.

1425085591 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 72000, while the sum is 40.

The square root of 1425085591 is about 37750.3058398207. The cubic root of 1425085591 is about 1125.3310870126.

The spelling of 1425085591 in words is "one billion, four hundred twenty-five million, eighty-five thousand, five hundred ninety-one".