41231591 has 4 divisors (see below), whose sum is σ = 42653400. Its totient is φ = 39809784.

The previous prime is 41231587. The next prime is 41231611. The reversal of 41231591 is 19513214.

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 41231591 - 2² = 41231587 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 41231591.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (41237591) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 710861 + ... + 710918.

It is an arithmetic number, because the mean of its divisors is an integer number (10663350).

Almost surely, 2^41231591 is an apocalyptic number.

41231591 is a deficient number, since it is larger than the sum of its proper divisors (1421809).

41231591 is a wasteful number, since it uses less digits than its factorization.

41231591 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1421808.

The product of its digits is 1080, while the sum is 26.

The square root of 41231591 is about 6421.1829906957. The cubic root of 41231591 is about 345.4697542641.

The spelling of 41231591 in words is "forty-one million, two hundred thirty-one thousand, five hundred ninety-one".