1082399231 has 16 divisors (see below), whose sum is σ = 1170435744. Its totient is φ = 997161984.

The previous prime is 1082399209. The next prime is 1082399281. The reversal of 1082399231 is 1329932801.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-1082399231 is a prime.

It is a super-3 number, since 3×1082399231³ (a number of 28 digits) contains 333 as substring. Note that it is a super-d number also for d = 2.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1082399281) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 470075 + ... + 472371.

It is an arithmetic number, because the mean of its divisors is an integer number (73152234).

Almost surely, 2^1082399231 is an apocalyptic number.

1082399231 is a deficient number, since it is larger than the sum of its proper divisors (88036513).

1082399231 is a wasteful number, since it uses less digits than its factorization.

1082399231 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2890.

The product of its (nonzero) digits is 23328, while the sum is 38.

The square root of 1082399231 is about 32899.8363369789. The cubic root of 1082399231 is about 1026.7447519014.

The spelling of 1082399231 in words is "one billion, eighty-two million, three hundred ninety-nine thousand, two hundred thirty-one".