1092981 has 16 divisors (see below), whose sum is σ = 1598400. Its totient is φ = 661248.

The previous prime is 1092977. The next prime is 1092989. The reversal of 1092981 is 1892901.

1092981 is a nontrivial binomial coefficient, being equal to C(1479, 2).

It is not a de Polignac number, because 1092981 - 2² = 1092977 is a prime.

It is a super-2 number, since 2×1092981² = 2389214932722, which contains 22 as substring.

It is an alternating number because its digits alternate between odd and even.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1092989) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 1110 + ... + 1848.

It is an arithmetic number, because the mean of its divisors is an integer number (99900).

2^1092981 is an apocalyptic number.

1092981 is the 1478-th triangular number.

It is an amenable number.

1092981 is a deficient number, since it is larger than the sum of its proper divisors (505419).

1092981 is a wasteful number, since it uses less digits than its factorization.

1092981 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 788.

The product of its (nonzero) digits is 1296, while the sum is 30.

The square root of 1092981 is about 1045.4573162019. The cubic root of 1092981 is about 103.0079800271.

The spelling of 1092981 in words is "one million, ninety-two thousand, nine hundred eighty-one".