1427032681 has 2 divisors, whose sum is σ = 1427032682. Its totient is φ = 1427032680.

The previous prime is 1427032679. The next prime is 1427032697. The reversal of 1427032681 is 1862307241.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 1018184281 + 408848400 = 31909^2 + 20220^2 .

It is a cyclic number.

It is not a de Polignac number, because 1427032681 - 2¹ = 1427032679 is a prime.

It is a super-2 number, since 2×1427032681² = 4072844545284095522, which contains 22 as substring.

Together with 1427032679, it forms a pair of twin primes.

It is not a weakly prime, because it can be changed into another prime (1427032661) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 713516340 + 713516341.

It is an arithmetic number, because the mean of its divisors is an integer number (713516341).

Almost surely, 2^1427032681 is an apocalyptic number.

It is an amenable number.

1427032681 is a deficient number, since it is larger than the sum of its proper divisors (1).

1427032681 is an equidigital number, since it uses as much as digits as its factorization.

1427032681 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 16128, while the sum is 34.

The square root of 1427032681 is about 37776.0860995419. The cubic root of 1427032681 is about 1125.8433658936.

The spelling of 1427032681 in words is "one billion, four hundred twenty-seven million, thirty-two thousand, six hundred eighty-one".