11591371 has 8 divisors (see below), whose sum is σ = 12673584. Its totient is φ = 10513920.

The previous prime is 11591369. The next prime is 11591383. The reversal of 11591371 is 17319511.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 11591371 - 2¹ = 11591369 is a prime.

It is not an unprimeable number, because it can be changed into a prime (11591341) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 5635 + ... + 7411.

It is an arithmetic number, because the mean of its divisors is an integer number (1584198).

Almost surely, 2^11591371 is an apocalyptic number.

11591371 is a gapful number since it is divisible by the number (11) formed by its first and last digit.

11591371 is a deficient number, since it is larger than the sum of its proper divisors (1082213).

11591371 is a wasteful number, since it uses less digits than its factorization.

11591371 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2381.

The product of its digits is 945, while the sum is 28.

The square root of 11591371 is about 3404.6102566961. The cubic root of 11591371 is about 226.3140945562.

The spelling of 11591371 in words is "eleven million, five hundred ninety-one thousand, three hundred seventy-one".