1083231613 has 4 divisors (see below), whose sum is σ = 1087446780. Its totient is φ = 1079016448.

The previous prime is 1083231599. The next prime is 1083231631. The reversal of 1083231613 is 3161323801.

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

It can be written as a sum of positive squares in 2 ways, for example, as 1078334244 + 4897369 = 32838^2 + 2213^2 .

It is a cyclic number.

It is not a de Polignac number, because 1083231613 - 2⁵ = 1083231581 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1083232613) 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, 2107198 + ... + 2107711.

It is an arithmetic number, because the mean of its divisors is an integer number (271861695).

Almost surely, 2^1083231613 is an apocalyptic number.

It is an amenable number.

1083231613 is a deficient number, since it is larger than the sum of its proper divisors (4215167).

1083231613 is an equidigital number, since it uses as much as digits as its factorization.

1083231613 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4215166.

The product of its (nonzero) digits is 2592, while the sum is 28.

The square root of 1083231613 is about 32912.4841511546. The cubic root of 1083231613 is about 1027.0078787407.

The spelling of 1083231613 in words is "one billion, eighty-three million, two hundred thirty-one thousand, six hundred thirteen".