1317956 has 6 divisors (see below), whose sum is σ = 2306430. Its totient is φ = 658976.

The previous prime is 1317947. The next prime is 1317961. The reversal of 1317956 is 6597131.

It can be written as a sum of positive squares in only one way, i.e., 1144900 + 173056 = 1070^2 + 416^2 .

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (7) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 164741 + ... + 164748.

It is an arithmetic number, because the mean of its divisors is an integer number (384405).

2^1317956 is an apocalyptic number.

It is an amenable number.

1317956 is a deficient number, since it is larger than the sum of its proper divisors (988474).

1317956 is a wasteful number, since it uses less digits than its factorization.

1317956 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 329493 (or 329491 counting only the distinct ones).

The product of its digits is 5670, while the sum is 32.

The square root of 1317956 is about 1148.0226478602. The cubic root of 1317956 is about 109.6394808656.

The spelling of 1317956 in words is "one million, three hundred seventeen thousand, nine hundred fifty-six".