1427315819 has 2 divisors, whose sum is σ = 1427315820. Its totient is φ = 1427315818.

The previous prime is 1427315809. The next prime is 1427315839. The reversal of 1427315819 is 9185137241.

It is a weak prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-1427315819 is a prime.

It is a super-2 number, since 2×1427315819² = 4074460894335281522, which contains 22 as substring.

It is not a weakly prime, because it can be changed into another prime (1427315809) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 713657909 + 713657910.

It is an arithmetic number, because the mean of its divisors is an integer number (713657910).

Almost surely, 2^1427315819 is an apocalyptic number.

1427315819 is a deficient number, since it is larger than the sum of its proper divisors (1).

1427315819 is an equidigital number, since it uses as much as digits as its factorization.

1427315819 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 60480, while the sum is 41.

The square root of 1427315819 is about 37779.8334961921. The cubic root of 1427315819 is about 1125.9178206143.

The spelling of 1427315819 in words is "one billion, four hundred twenty-seven million, three hundred fifteen thousand, eight hundred nineteen".