1161982 has 8 divisors (see below), whose sum is σ = 1748016. Its totient is φ = 579312.

The previous prime is 1161949. The next prime is 1161991. The reversal of 1161982 is 2891611.

It is a happy number.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a plaindrome in base 14.

It is a self number, because there is not a number n which added to its sum of digits gives 1161982.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 378 + ... + 1570.

It is an arithmetic number, because the mean of its divisors is an integer number (218502).

2^1161982 is an apocalyptic number.

1161982 is a deficient number, since it is larger than the sum of its proper divisors (586034).

1161982 is a wasteful number, since it uses less digits than its factorization.

1161982 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1682.

The product of its digits is 864, while the sum is 28.

The square root of 1161982 is about 1077.9526891288. The cubic root of 1161982 is about 105.1315659923.

The spelling of 1161982 in words is "one million, one hundred sixty-one thousand, nine hundred eighty-two".