1090206831 has 48 divisors (see below), whose sum is σ = 1825459200. Its totient is φ = 575289792.

The previous prime is 1090206829. The next prime is 1090206841. The reversal of 1090206831 is 1386020901.

It is not a de Polignac number, because 1090206831 - 2¹ = 1090206829 is a prime.

It is a super-2 number, since 2×1090206831² = 2377101868718125122, which contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1090206841) by changing a digit.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 92490 + ... + 103608.

It is an arithmetic number, because the mean of its divisors is an integer number (38030400).

Almost surely, 2^1090206831 is an apocalyptic number.

1090206831 is a deficient number, since it is larger than the sum of its proper divisors (735252369).

1090206831 is a wasteful number, since it uses less digits than its factorization.

1090206831 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 11188 (or 11181 counting only the distinct ones).

The product of its (nonzero) digits is 2592, while the sum is 30.

The square root of 1090206831 is about 33018.2802550345. The cubic root of 1090206831 is about 1029.2075568172.

The spelling of 1090206831 in words is "one billion, ninety million, two hundred six thousand, eight hundred thirty-one".