1091344149 has 24 divisors (see below), whose sum is σ = 1802953152. Its totient is φ = 623151360.

The previous prime is 1091344141. The next prime is 1091344207. The reversal of 1091344149 is 9414431901.

1091344149 is a `hidden beast` number, since 109 + 134 + 414 + 9 = 666.

It is not a de Polignac number, because 1091344149 - 2³ = 1091344141 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1091344141) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 87589 + ... + 99269.

It is an arithmetic number, because the mean of its divisors is an integer number (75123048).

Almost surely, 2^1091344149 is an apocalyptic number.

It is an amenable number.

1091344149 is a deficient number, since it is larger than the sum of its proper divisors (711609003).

1091344149 is a wasteful number, since it uses less digits than its factorization.

1091344149 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 13177 (or 13174 counting only the distinct ones).

The product of its (nonzero) digits is 15552, while the sum is 36.

The square root of 1091344149 is about 33035.4983162053. The cubic root of 1091344149 is about 1029.5653266895.

The spelling of 1091344149 in words is "one billion, ninety-one million, three hundred forty-four thousand, one hundred forty-nine".