1345103256 has 128 divisors (see below), whose sum is σ = 3956359680. Its totient is φ = 373165056.

The previous prime is 1345103213. The next prime is 1345103281. The reversal of 1345103256 is 6523015431.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 820870 + ... + 822506.

It is an arithmetic number, because the mean of its divisors is an integer number (30909060).

Almost surely, 2^1345103256 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 1345103256, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (1978179840).

1345103256 is an abundant number, since it is smaller than the sum of its proper divisors (2611256424).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

1345103256 is a wasteful number, since it uses less digits than its factorization.

1345103256 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1793 (or 1789 counting only the distinct ones).

The product of its (nonzero) digits is 10800, while the sum is 30.

The square root of 1345103256 is about 36675.6493603044. The cubic root of 1345103256 is about 1103.8715522162.

Adding to 1345103256 its reverse (6523015431), we get a palindrome (7868118687).

The spelling of 1345103256 in words is "one billion, three hundred forty-five million, one hundred three thousand, two hundred fifty-six".