2942591 has 4 divisors (see below), whose sum is σ = 2953800. Its totient is φ = 2931384.

The previous prime is 2942561. The next prime is 2942609. The reversal of 2942591 is 1952492.

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 2942591 - 2¹⁰ = 2941567 is a prime.

It is an Ulam number.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2942521) 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, 5201 + ... + 5738.

It is an arithmetic number, because the mean of its divisors is an integer number (738450).

2^2942591 is an apocalyptic number.

2942591 is a deficient number, since it is larger than the sum of its proper divisors (11209).

2942591 is a wasteful number, since it uses less digits than its factorization.

2942591 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 11208.

The product of its digits is 6480, while the sum is 32.

The square root of 2942591 is about 1715.3982044995. The cubic root of 2942591 is about 143.2990465432.

Subtracting from 2942591 its reverse (1952492), we obtain a palindrome (990099).

The spelling of 2942591 in words is "two million, nine hundred forty-two thousand, five hundred ninety-one".