1321614659 has 2 divisors, whose sum is σ = 1321614660. Its totient is φ = 1321614658.

The previous prime is 1321614649. The next prime is 1321614677. The reversal of 1321614659 is 9564161231.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 1321614659 - 2⁸ = 1321614403 is a prime.

It is a Sophie Germain prime.

It is not a weakly prime, because it can be changed into another prime (1321614649) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 660807329 + 660807330.

It is an arithmetic number, because the mean of its divisors is an integer number (660807330).

Almost surely, 2^1321614659 is an apocalyptic number.

1321614659 is a deficient number, since it is larger than the sum of its proper divisors (1).

1321614659 is an equidigital number, since it uses as much as digits as its factorization.

1321614659 is an evil number, because the sum of its binary digits is even.

The product of its digits is 38880, while the sum is 38.

The square root of 1321614659 is about 36354.0184711402. The cubic root of 1321614659 is about 1097.4084056235.

The spelling of 1321614659 in words is "one billion, three hundred twenty-one million, six hundred fourteen thousand, six hundred fifty-nine".