1427307109 has 2 divisors, whose sum is σ = 1427307110. Its totient is φ = 1427307108.

The previous prime is 1427307073. The next prime is 1427307143. The reversal of 1427307109 is 9017037241.

It is an a-pointer prime, because the next prime (1427307143) can be obtained adding 1427307109 to its sum of digits (34).

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 903904225 + 523402884 = 30065^2 + 22878^2 .

It is an emirp because it is prime and its reverse (9017037241) is a distict prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-1427307109 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (1427307509) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 713653554 + 713653555.

It is an arithmetic number, because the mean of its divisors is an integer number (713653555).

Almost surely, 2^1427307109 is an apocalyptic number.

It is an amenable number.

1427307109 is a deficient number, since it is larger than the sum of its proper divisors (1).

1427307109 is an equidigital number, since it uses as much as digits as its factorization.

1427307109 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 10584, while the sum is 34.

The square root of 1427307109 is about 37779.7182228772. The cubic root of 1427307109 is about 1125.9155303563.

The spelling of 1427307109 in words is "one billion, four hundred twenty-seven million, three hundred seven thousand, one hundred nine".