2291001 has 8 divisors (see below), whose sum is σ = 3215520. Its totient is φ = 1446912.

The previous prime is 2290999. The next prime is 2291017. The reversal of 2291001 is 1001922.

It is a happy number.

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

It is not a de Polignac number, because 2291001 - 2¹ = 2290999 is a prime.

It is not an unprimeable number, because it can be changed into a prime (2291041) 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, 20040 + ... + 20153.

It is an arithmetic number, because the mean of its divisors is an integer number (401940).

2^2291001 is an apocalyptic number.

It is an amenable number.

2291001 is a deficient number, since it is larger than the sum of its proper divisors (924519).

2291001 is a wasteful number, since it uses less digits than its factorization.

2291001 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 40215.

The product of its (nonzero) digits is 36, while the sum is 15.

The square root of 2291001 is about 1513.6052986165. The cubic root of 2291001 is about 131.8282315834.

Adding to 2291001 its reverse (1001922), we get a palindrome (3292923).

The spelling of 2291001 in words is "two million, two hundred ninety-one thousand, one".