1345013223 has 4 divisors (see below), whose sum is σ = 1793350968. Its totient is φ = 896675480.

The previous prime is 1345013209. The next prime is 1345013227. The reversal of 1345013223 is 3223105431.

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

It is a cyclic number.

It is not a de Polignac number, because 1345013223 - 2⁴ = 1345013207 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 1345013193 and 1345013202.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1345013227) 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, 224168868 + ... + 224168873.

It is an arithmetic number, because the mean of its divisors is an integer number (448337742).

Almost surely, 2^1345013223 is an apocalyptic number.

1345013223 is a deficient number, since it is larger than the sum of its proper divisors (448337745).

1345013223 is an equidigital number, since it uses as much as digits as its factorization.

1345013223 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 448337744.

The product of its (nonzero) digits is 2160, while the sum is 24.

The square root of 1345013223 is about 36674.4219177344. The cubic root of 1345013223 is about 1103.8469228592.

Adding to 1345013223 its reverse (3223105431), we get a palindrome (4568118654).

The spelling of 1345013223 in words is "one billion, three hundred forty-five million, thirteen thousand, two hundred twenty-three".