1348774445 has 4 divisors (see below), whose sum is σ = 1618529340. Its totient is φ = 1079019552.

The previous prime is 1348774423. The next prime is 1348774457. The reversal of 1348774445 is 5444778431.

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 178997641 + 1169776804 = 13379^2 + 34202^2 .

It is a cyclic number.

It is not a de Polignac number, because 1348774445 - 2¹² = 1348770349 is a prime.

It is a Curzon number.

It is a self number, because there is not a number n which added to its sum of digits gives 1348774445.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 134877440 + ... + 134877449.

It is an arithmetic number, because the mean of its divisors is an integer number (404632335).

Almost surely, 2^1348774445 is an apocalyptic number.

It is an amenable number.

1348774445 is a deficient number, since it is larger than the sum of its proper divisors (269754895).

1348774445 is an equidigital number, since it uses as much as digits as its factorization.

1348774445 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 269754894.

The product of its digits is 1505280, while the sum is 47.

The square root of 1348774445 is about 36725.6646638288. The cubic root of 1348774445 is about 1104.8749051347.

The spelling of 1348774445 in words is "one billion, three hundred forty-eight million, seven hundred seventy-four thousand, four hundred forty-five".