1314016721 has 2 divisors, whose sum is σ = 1314016722. Its totient is φ = 1314016720.

The previous prime is 1314016633. The next prime is 1314016729. The reversal of 1314016721 is 1276104131.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 996286096 + 317730625 = 31564^2 + 17825^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-1314016721 is a prime.

It is not a weakly prime, because it can be changed into another prime (1314016729) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 657008360 + 657008361.

It is an arithmetic number, because the mean of its divisors is an integer number (657008361).

Almost surely, 2^1314016721 is an apocalyptic number.

It is an amenable number.

1314016721 is a deficient number, since it is larger than the sum of its proper divisors (1).

1314016721 is an equidigital number, since it uses as much as digits as its factorization.

1314016721 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 1008, while the sum is 26.

The square root of 1314016721 is about 36249.3685600177. The cubic root of 1314016721 is about 1095.3013692007.

The spelling of 1314016721 in words is "one billion, three hundred fourteen million, sixteen thousand, seven hundred twenty-one".