1345044245 has 4 divisors (see below), whose sum is σ = 1614053100. Its totient is φ = 1076035392.

The previous prime is 1345044241. The next prime is 1345044247. The reversal of 1345044245 is 5424405431.

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 232288081 + 1112756164 = 15241^2 + 33358^2 .

It is a cyclic number.

It is not a de Polignac number, because 1345044245 - 2² = 1345044241 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1345044241) 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, 134504420 + ... + 134504429.

It is an arithmetic number, because the mean of its divisors is an integer number (403513275).

Almost surely, 2^1345044245 is an apocalyptic number.

It is an amenable number.

1345044245 is a deficient number, since it is larger than the sum of its proper divisors (269008855).

1345044245 is an equidigital number, since it uses as much as digits as its factorization.

1345044245 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 269008854.

The product of its (nonzero) digits is 38400, while the sum is 32.

The square root of 1345044245 is about 36674.8448531142. The cubic root of 1345044245 is about 1103.8554093374.

Adding to 1345044245 its reverse (5424405431), we get a palindrome (6769449676).

The spelling of 1345044245 in words is "one billion, three hundred forty-five million, forty-four thousand, two hundred forty-five".