1091464291 has 4 divisors (see below), whose sum is σ = 1148909800. Its totient is φ = 1034018784.

The previous prime is 1091464267. The next prime is 1091464349. The reversal of 1091464291 is 1924641901.

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

It is a cyclic number.

It is not a de Polignac number, because 1091464291 - 2¹¹ = 1091462243 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 1091464291.

It is not an unprimeable number, because it can be changed into a prime (1091464091) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 28722726 + ... + 28722763.

It is an arithmetic number, because the mean of its divisors is an integer number (287227450).

Almost surely, 2^1091464291 is an apocalyptic number.

1091464291 is a deficient number, since it is larger than the sum of its proper divisors (57445509).

1091464291 is an equidigital number, since it uses as much as digits as its factorization.

1091464291 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 57445508.

The product of its (nonzero) digits is 15552, while the sum is 37.

The square root of 1091464291 is about 33037.3166434564. The cubic root of 1091464291 is about 1029.6031056367.

The spelling of 1091464291 in words is "one billion, ninety-one million, four hundred sixty-four thousand, two hundred ninety-one".