1381983017 has 2 divisors, whose sum is σ = 1381983018. Its totient is φ = 1381983016.

The previous prime is 1381982981. The next prime is 1381983049. The reversal of 1381983017 is 7103891831.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 979940416 + 402042601 = 31304^2 + 20051^2 .

It is a cyclic number.

It is not a de Polignac number, because 1381983017 - 2¹² = 1381978921 is a prime.

It is not a weakly prime, because it can be changed into another prime (1381983067) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 690991508 + 690991509.

It is an arithmetic number, because the mean of its divisors is an integer number (690991509).

Almost surely, 2^1381983017 is an apocalyptic number.

It is an amenable number.

1381983017 is a deficient number, since it is larger than the sum of its proper divisors (1).

1381983017 is an equidigital number, since it uses as much as digits as its factorization.

1381983017 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 36288, while the sum is 41.

The square root of 1381983017 is about 37175.0321721448. The cubic root of 1381983017 is about 1113.8693028060.

The spelling of 1381983017 in words is "one billion, three hundred eighty-one million, nine hundred eighty-three thousand, seventeen".