1445256343 has 12 divisors (see below), whose sum is σ = 1545622200. Its totient is φ = 1351071872.

The previous prime is 1445256331. The next prime is 1445256349. The reversal of 1445256343 is 3436525441.

It is not a de Polignac number, because 1445256343 - 2¹³ = 1445248151 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1445256349) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 26280 + ... + 59842.

It is an arithmetic number, because the mean of its divisors is an integer number (128801850).

Almost surely, 2^1445256343 is an apocalyptic number.

1445256343 is a deficient number, since it is larger than the sum of its proper divisors (100365857).

1445256343 is a wasteful number, since it uses less digits than its factorization.

1445256343 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 33746 (or 33729 counting only the distinct ones).

The product of its digits is 172800, while the sum is 37.

The square root of 1445256343 is about 38016.5272348751. The cubic root of 1445256343 is about 1130.6155684894.

The spelling of 1445256343 in words is "one billion, four hundred forty-five million, two hundred fifty-six thousand, three hundred forty-three".