1381171682 has 18 divisors (see below), whose sum is σ = 2278174689. Its totient is φ = 627542520.

The previous prime is 1381171669. The next prime is 1381171691. The reversal of 1381171682 is 2861711831.

It is a happy number.

It can be written as a sum of positive squares in 2 ways, for example, as 1269425641 + 111746041 = 35629^2 + 10571^2 .

It is an ABA number since it can be written as A⋅B^A, here for A=2, B=26279.

It is a Duffinian number.

It is an unprimeable number.

It is a polite number, since it can be written in 8 ways as a sum of consecutive naturals, for example, 576944 + ... + 579332.

Almost surely, 2^1381171682 is an apocalyptic number.

1381171682 is a deficient number, since it is larger than the sum of its proper divisors (897003007).

1381171682 is an frugal number, since it uses more digits than its factorization.

1381171682 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4802 (or 2402 counting only the distinct ones).

The product of its digits is 16128, while the sum is 38.

The square root of 1381171682 is about 37164.1182056026. The cubic root of 1381171682 is about 1113.6512832284.

The spelling of 1381171682 in words is "one billion, three hundred eighty-one million, one hundred seventy-one thousand, six hundred eighty-two".