1420245899 has 2 divisors, whose sum is σ = 1420245900. Its totient is φ = 1420245898.

The previous prime is 1420245889. The next prime is 1420245917. The reversal of 1420245899 is 9985420241.

It is a weak prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-1420245899 is a prime.

It is a Sophie Germain prime.

It is not a weakly prime, because it can be changed into another prime (1420245809) 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, 710122949 + 710122950.

It is an arithmetic number, because the mean of its divisors is an integer number (710122950).

Almost surely, 2^1420245899 is an apocalyptic number.

1420245899 is a deficient number, since it is larger than the sum of its proper divisors (1).

1420245899 is an equidigital number, since it uses as much as digits as its factorization.

1420245899 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 207360, while the sum is 44.

The square root of 1420245899 is about 37686.1499625526. The cubic root of 1420245899 is about 1124.0557407356.

The spelling of 1420245899 in words is "one billion, four hundred twenty million, two hundred forty-five thousand, eight hundred ninety-nine".