1141591 has 8 divisors (see below), whose sum is σ = 1267200. Its totient is φ = 1019640.

The previous prime is 1141573. The next prime is 1141597. The reversal of 1141591 is 1951411.

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 1141591 - 2¹⁵ = 1108823 is a prime.

It is a super-2 number, since 2×1141591² = 2606460022562, which contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1141597) 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, 231 + ... + 1528.

It is an arithmetic number, because the mean of its divisors is an integer number (158400).

2^1141591 is an apocalyptic number.

1141591 is a gapful number since it is divisible by the number (11) formed by its first and last digit.

1141591 is a deficient number, since it is larger than the sum of its proper divisors (125609).

1141591 is a wasteful number, since it uses less digits than its factorization.

1141591 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1829.

The product of its digits is 180, while the sum is 22.

The square root of 1141591 is about 1068.4526194455. The cubic root of 1141591 is about 104.5129674162.

Subtracting from 1141591 its product of digits (180), we obtain a palindrome (1141411).

The spelling of 1141591 in words is "one million, one hundred forty-one thousand, five hundred ninety-one".