1356671256 has 16 divisors (see below), whose sum is σ = 3391678200. Its totient is φ = 452223744.

The previous prime is 1356671227. The next prime is 1356671273. The reversal of 1356671256 is 6521766531.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 28263961 + ... + 28264008.

Almost surely, 2^1356671256 is an apocalyptic number.

It is an amenable number.

1356671256 is an abundant number, since it is smaller than the sum of its proper divisors (2035006944).

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

1356671256 is a wasteful number, since it uses less digits than its factorization.

1356671256 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 56527978 (or 56527974 counting only the distinct ones).

The product of its digits is 226800, while the sum is 42.

The square root of 1356671256 is about 36833.0185567243. The cubic root of 1356671256 is about 1107.0269861853.

The spelling of 1356671256 in words is "one billion, three hundred fifty-six million, six hundred seventy-one thousand, two hundred fifty-six".