1369155913 has 4 divisors (see below), whose sum is σ = 1370500560. Its totient is φ = 1367811268.

The previous prime is 1369155901. The next prime is 1369155923. The reversal of 1369155913 is 3195519631.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4, and also an emirpimes, since its reverse is a distinct semiprime: 3195519631 = 17 ⋅187971743.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-1369155913 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 1369155913.

It is not an unprimeable number, because it can be changed into a prime (1369155923) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 670795 + ... + 672832.

It is an arithmetic number, because the mean of its divisors is an integer number (342625140).

Almost surely, 2^1369155913 is an apocalyptic number.

It is an amenable number.

1369155913 is a deficient number, since it is larger than the sum of its proper divisors (1344647).

1369155913 is a wasteful number, since it uses less digits than its factorization.

1369155913 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1344646.

The product of its digits is 109350, while the sum is 43.

The square root of 1369155913 is about 37002.1068724471. The cubic root of 1369155913 is about 1110.4123979628.

The spelling of 1369155913 in words is "one billion, three hundred sixty-nine million, one hundred fifty-five thousand, nine hundred thirteen".