1345583760049 has 3 divisors (see below), whose sum is σ = 1345584920043. Its totient is φ = 1345582600056.

The previous prime is 1345583760047. The next prime is 1345583760067. The reversal of 1345583760049 is 9400673855431.

It is a happy number.

The square root of 1345583760049 is 1159993.

It is a perfect power (a square), and thus also a powerful number.

It is a semiprime because it is the product of two primes, and also a brilliant number, because the two primes have the same length.

It can be written as a sum of positive squares in only one way, i.e., 1345286818225 + 296941824 = 1159865^2 + 17232^2 .

It is not a de Polignac number, because 1345583760049 - 2¹ = 1345583760047 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (1345583760047) by changing a digit.

It is a polite number, since it can be written in 2 ways as a sum of consecutive naturals, for example, 579997 + ... + 1739989.

It is an arithmetic number, because the mean of its divisors is an integer number (448528306681).

Almost surely, 2^{1345583760049} is an apocalyptic number.

1345583760049 is the 1159993-rd square number.

1345583760049 is the 579997-th centered octagonal number.

It is an amenable number.

1345583760049 is a deficient number, since it is larger than the sum of its proper divisors (1159994).

1345583760049 is an frugal number, since it uses more digits than its factorization.

1345583760049 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2319986 (or 1159993 counting only the distinct ones).

The product of its (nonzero) digits is 10886400, while the sum is 55.

The spelling of 1345583760049 in words is "one trillion, three hundred forty-five billion, five hundred eighty-three million, seven hundred sixty thousand, forty-nine".