1313027217 has 6 divisors (see below), whose sum is σ = 1896594882. Its totient is φ = 875351472.

The previous prime is 1313027201. The next prime is 1313027239. The reversal of 1313027217 is 7127203131.

It can be written as a sum of positive squares in only one way, i.e., 983386881 + 329640336 = 31359^2 + 18156^2 .

It is not a de Polignac number, because 1313027217 - 2⁴ = 1313027201 is a prime.

It is not an unprimeable number, because it can be changed into a prime (1313027717) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 72945948 + ... + 72945965.

It is an arithmetic number, because the mean of its divisors is an integer number (316099147).

Almost surely, 2^1313027217 is an apocalyptic number.

It is an amenable number.

1313027217 is a deficient number, since it is larger than the sum of its proper divisors (583567665).

1313027217 is a wasteful number, since it uses less digits than its factorization.

1313027217 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 145891919 (or 145891916 counting only the distinct ones).

The product of its (nonzero) digits is 1764, while the sum is 27.

The square root of 1313027217 is about 36235.7174207991. The cubic root of 1313027217 is about 1095.0263657879.

The spelling of 1313027217 in words is "one billion, three hundred thirteen million, twenty-seven thousand, two hundred seventeen".