1369719013 has 8 divisors (see below), whose sum is σ = 1485850968. Its totient is φ = 1255125504.

The previous prime is 1369719011. The next prime is 1369719047. The reversal of 1369719013 is 3109179631.

It can be written as a sum of positive squares in 4 ways, for example, as 15626209 + 1354092804 = 3953^2 + 36798^2 .

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 1369719013 - 2¹ = 1369719011 is a prime.

It is a super-2 number, since 2×1369719013² = 3752260349147388338, which contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1369719011) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 382756 + ... + 386317.

It is an arithmetic number, because the mean of its divisors is an integer number (185731371).

Almost surely, 2^1369719013 is an apocalyptic number.

1369719013 is a gapful number since it is divisible by the number (13) formed by its first and last digit.

It is an amenable number.

1369719013 is a deficient number, since it is larger than the sum of its proper divisors (116131955).

1369719013 is a wasteful number, since it uses less digits than its factorization.

1369719013 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 769223.

The product of its (nonzero) digits is 30618, while the sum is 40.

The square root of 1369719013 is about 37009.7151164394. The cubic root of 1369719013 is about 1110.5646054933.

The spelling of 1369719013 in words is "one billion, three hundred sixty-nine million, seven hundred nineteen thousand, thirteen".