1345052253 has 4 divisors (see below), whose sum is σ = 1793403008. Its totient is φ = 896701500.

The previous prime is 1345052227. The next prime is 1345052263. The reversal of 1345052253 is 3522505431.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is not a de Polignac number, because 1345052253 - 2¹⁰ = 1345051229 is a prime.

It is a Duffinian number.

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 1345052253.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1345052263) by changing a digit.

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, 224175373 + ... + 224175378.

It is an arithmetic number, because the mean of its divisors is an integer number (448350752).

Almost surely, 2^1345052253 is an apocalyptic number.

It is an amenable number.

1345052253 is a deficient number, since it is larger than the sum of its proper divisors (448350755).

1345052253 is an equidigital number, since it uses as much as digits as its factorization.

1345052253 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 448350754.

The product of its (nonzero) digits is 18000, while the sum is 30.

The square root of 1345052253 is about 36674.9540286010. The cubic root of 1345052253 is about 1103.8576000104.

Adding to 1345052253 its reverse (3522505431), we get a palindrome (4867557684).

It can be divided in two parts, 13450 and 52253, that added together give a triangular number (65703 = T₃₆₂).

The spelling of 1345052253 in words is "one billion, three hundred forty-five million, fifty-two thousand, two hundred fifty-three".