1345133045 has 4 divisors (see below), whose sum is σ = 1614159660. Its totient is φ = 1076106432.

The previous prime is 1345133033. The next prime is 1345133089. The reversal of 1345133045 is 5403315431.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 5403315431 = 2819 ⋅1916749.

It can be written as a sum of positive squares in 2 ways, for example, as 623351089 + 721781956 = 24967^2 + 26866^2 .

It is a cyclic number.

It is not a de Polignac number, because 1345133045 - 2¹² = 1345128949 is a prime.

It is a Curzon number.

It is a junction number, because it is equal to n+sod(n) for n = 1345132999 and 1345133017.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 134513300 + ... + 134513309.

It is an arithmetic number, because the mean of its divisors is an integer number (403539915).

Almost surely, 2^1345133045 is an apocalyptic number.

It is an amenable number.

1345133045 is a deficient number, since it is larger than the sum of its proper divisors (269026615).

1345133045 is an equidigital number, since it uses as much as digits as its factorization.

1345133045 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 269026614.

The product of its (nonzero) digits is 10800, while the sum is 29.

The square root of 1345133045 is about 36676.0554722015. The cubic root of 1345133045 is about 1103.8797010298.

Adding to 1345133045 its reverse (5403315431), we get a palindrome (6748448476).

The spelling of 1345133045 in words is "one billion, three hundred forty-five million, one hundred thirty-three thousand, forty-five".