1091343160 has 16 divisors (see below), whose sum is σ = 2455522200. Its totient is φ = 436537248.

The previous prime is 1091343091. The next prime is 1091343181. The reversal of 1091343160 is 613431901.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 13641750 + ... + 13641829.

Almost surely, 2^1091343160 is an apocalyptic number.

1091343160 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

1091343160 is an abundant number, since it is smaller than the sum of its proper divisors (1364179040).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

1091343160 is a wasteful number, since it uses less digits than its factorization.

1091343160 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 27283590 (or 27283586 counting only the distinct ones).

The product of its (nonzero) digits is 1944, while the sum is 28.

The square root of 1091343160 is about 33035.4833474554. The cubic root of 1091343160 is about 1029.5650156846.

It can be divided in two parts, 1091343 and 160, that added together give a triangular number (1091503 = T₁₄₇₇).

The spelling of 1091343160 in words is "one billion, ninety-one million, three hundred forty-three thousand, one hundred sixty".