1349919245 has 4 divisors (see below), whose sum is σ = 1619903100. Its totient is φ = 1079935392.

The previous prime is 1349919227. The next prime is 1349919247. The reversal of 1349919245 is 5429199431.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in 2 ways, for example, as 542563849 + 807355396 = 23293^2 + 28414^2 .

It is a cyclic number.

It is not a de Polignac number, because 1349919245 - 2²⁰ = 1348870669 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 1349919245.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1349919247) 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, 134991920 + ... + 134991929.

It is an arithmetic number, because the mean of its divisors is an integer number (404975775).

Almost surely, 2^1349919245 is an apocalyptic number.

It is an amenable number.

1349919245 is a deficient number, since it is larger than the sum of its proper divisors (269983855).

1349919245 is an equidigital number, since it uses as much as digits as its factorization.

1349919245 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 269983854.

The product of its digits is 349920, while the sum is 47.

The square root of 1349919245 is about 36741.2471889564. The cubic root of 1349919245 is about 1105.1874118220.

The spelling of 1349919245 in words is "one billion, three hundred forty-nine million, nine hundred nineteen thousand, two hundred forty-five".