1089031 has 4 divisors (see below), whose sum is σ = 1091872. Its totient is φ = 1086192.

The previous prime is 1089029. The next prime is 1089047. The reversal of 1089031 is 1309801.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 1089031 - 2¹ = 1089029 is a prime.

It is a super-2 number, since 2×1089031² = 2371977037922, which contains 22 as substring.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 1088993 and 1089011.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1089091) 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, 735 + ... + 1648.

It is an arithmetic number, because the mean of its divisors is an integer number (272968).

2^1089031 is an apocalyptic number.

1089031 is a deficient number, since it is larger than the sum of its proper divisors (2841).

1089031 is an equidigital number, since it uses as much as digits as its factorization.

1089031 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2840.

The product of its (nonzero) digits is 216, while the sum is 22.

The square root of 1089031 is about 1043.5664808722. The cubic root of 1089031 is about 102.8837410086.

The spelling of 1089031 in words is "one million, eighty-nine thousand, thirty-one".