1161992 has 16 divisors (see below), whose sum is σ = 2346540. Its totient is φ = 536256.

The previous prime is 1161991. The next prime is 1161997. The reversal of 1161992 is 2991611.

It can be written as a sum of positive squares in 2 ways, for example, as 1110916 + 51076 = 1054^2 + 226^2 .

It is not an unprimeable number, because it can be changed into a prime (1161991) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 5483 + ... + 5690.

2^1161992 is an apocalyptic number.

It is an amenable number.

1161992 is an abundant number, since it is smaller than the sum of its proper divisors (1184548).

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

1161992 is a wasteful number, since it uses less digits than its factorization.

1161992 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 11192 (or 11188 counting only the distinct ones).

The product of its digits is 972, while the sum is 29.

The square root of 1161992 is about 1077.9573275413. The cubic root of 1161992 is about 105.1318675783.

It can be divided in two parts, 11619 and 92, that added together give a palindrome (11711).

The spelling of 1161992 in words is "one million, one hundred sixty-one thousand, nine hundred ninety-two".