1345831282 has 16 divisors (see below), whose sum is σ = 2153106360. Its totient is φ = 628707328.

The previous prime is 1345831271. The next prime is 1345831297. The reversal of 1345831282 is 2821385431.

It can be written as a sum of positive squares in 4 ways, for example, as 1333783441 + 12047841 = 36521^2 + 3471^2 .

It is a super-2 number, since 2×1345831282² = 3622523679219527048, which contains 22 as substring.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 139807 + ... + 149122.

Almost surely, 2^1345831282 is an apocalyptic number.

1345831282 is a deficient number, since it is larger than the sum of its proper divisors (807275078).

1345831282 is a wasteful number, since it uses less digits than its factorization.

1345831282 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 289085.

The product of its digits is 46080, while the sum is 37.

The square root of 1345831282 is about 36685.5732134582. The cubic root of 1345831282 is about 1104.0706700762.

The spelling of 1345831282 in words is "one billion, three hundred forty-five million, eight hundred thirty-one thousand, two hundred eighty-two".