1082872289 has 4 divisors (see below), whose sum is σ = 1083315120. Its totient is φ = 1082429460.

The previous prime is 1082872283. The next prime is 1082872313. The reversal of 1082872289 is 9822782801.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-1082872289 is a prime.

It is a super-2 number, since 2×1082872289² = 2345224788568199042, which contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (1082872283) 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, 217727 + ... + 222644.

It is an arithmetic number, because the mean of its divisors is an integer number (270828780).

Almost surely, 2^1082872289 is an apocalyptic number.

It is an amenable number.

1082872289 is a deficient number, since it is larger than the sum of its proper divisors (442831).

1082872289 is an equidigital number, since it uses as much as digits as its factorization.

1082872289 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 442830.

The product of its (nonzero) digits is 258048, while the sum is 47.

The square root of 1082872289 is about 32907.0249187009. The cubic root of 1082872289 is about 1026.8943082644.

The spelling of 1082872289 in words is "one billion, eighty-two million, eight hundred seventy-two thousand, two hundred eighty-nine".