1369983249 has 12 divisors (see below), whose sum is σ = 1979353012. Its totient is φ = 913096800.

The previous prime is 1369983211. The next prime is 1369983271. The reversal of 1369983249 is 9423899631.

It can be written as a sum of positive squares in 2 ways, for example, as 903423249 + 466560000 = 30057^2 + 21600^2 .

It is not a de Polignac number, because 1369983249 - 2⁸ = 1369982993 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 1369983195 and 1369983204.

It is not an unprimeable number, because it can be changed into a prime (1369983449) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 25119 + ... + 58059.

Almost surely, 2^1369983249 is an apocalyptic number.

It is an amenable number.

1369983249 is a deficient number, since it is larger than the sum of its proper divisors (609369763).

1369983249 is a wasteful number, since it uses less digits than its factorization.

1369983249 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 37568 (or 37565 counting only the distinct ones).

The product of its digits is 2519424, while the sum is 54.

The square root of 1369983249 is about 37013.2847637169. The cubic root of 1369983249 is about 1110.6360148549.

The spelling of 1369983249 in words is "one billion, three hundred sixty-nine million, nine hundred eighty-three thousand, two hundred forty-nine".