9042591 has 8 divisors (see below), whose sum is σ = 12351024. Its totient is φ = 5881280.

The previous prime is 9042569. The next prime is 9042619. The reversal of 9042591 is 1952409.

It is a happy number.

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

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-9042591 is a prime.

9042591 is a lucky number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (9042511) 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, 36636 + ... + 36881.

It is an arithmetic number, because the mean of its divisors is an integer number (1543878).

Almost surely, 2^9042591 is an apocalyptic number.

9042591 is a deficient number, since it is larger than the sum of its proper divisors (3308433).

9042591 is a wasteful number, since it uses less digits than its factorization.

9042591 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 73561.

The product of its (nonzero) digits is 3240, while the sum is 30.

The square root of 9042591 is about 3007.0901216957. The cubic root of 9042591 is about 208.3359877351.

The spelling of 9042591 in words is "nine million, forty-two thousand, five hundred ninety-one".