1345023215 has 4 divisors (see below), whose sum is σ = 1614027864. Its totient is φ = 1076018568.

The previous prime is 1345023193. The next prime is 1345023247. The reversal of 1345023215 is 5123205431.

It is a happy number.

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 1345023215 - 2¹⁸ = 1344761071 is a prime.

It is a Duffinian number.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 134502317 + ... + 134502326.

It is an arithmetic number, because the mean of its divisors is an integer number (403506966).

Almost surely, 2^1345023215 is an apocalyptic number.

1345023215 is a deficient number, since it is larger than the sum of its proper divisors (269004649).

1345023215 is an equidigital number, since it uses as much as digits as its factorization.

1345023215 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 269004648.

The product of its (nonzero) digits is 3600, while the sum is 26.

The square root of 1345023215 is about 36674.5581432142. The cubic root of 1345023215 is about 1103.8496563171.

Adding to 1345023215 its reverse (5123205431), we get a palindrome (6468228646).

The spelling of 1345023215 in words is "one billion, three hundred forty-five million, twenty-three thousand, two hundred fifteen".