1314571649 has 2 divisors, whose sum is σ = 1314571650. Its totient is φ = 1314571648.

The previous prime is 1314571637. The next prime is 1314571681. The reversal of 1314571649 is 9461754131.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 1314570049 + 1600 = 36257^2 + 40^2 .

It is a cyclic number.

It is not a de Polignac number, because 1314571649 - 2⁴ = 1314571633 is a prime.

It is not a weakly prime, because it can be changed into another prime (1314571249) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 657285824 + 657285825.

It is an arithmetic number, because the mean of its divisors is an integer number (657285825).

Almost surely, 2^1314571649 is an apocalyptic number.

It is an amenable number.

1314571649 is a deficient number, since it is larger than the sum of its proper divisors (1).

1314571649 is an equidigital number, since it uses as much as digits as its factorization.

1314571649 is an evil number, because the sum of its binary digits is even.

The product of its digits is 90720, while the sum is 41.

The square root of 1314571649 is about 36257.0220646980. The cubic root of 1314571649 is about 1095.4555346300.

The spelling of 1314571649 in words is "one billion, three hundred fourteen million, five hundred seventy-one thousand, six hundred forty-nine".