2231641 has 8 divisors (see below), whose sum is σ = 2376864. Its totient is φ = 2088000.

The previous prime is 2231627. The next prime is 2231653. The reversal of 2231641 is 1461322.

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 2231641 - 2⁵ = 2231609 is a prime.

It is a super-3 number, since 3×2231641³ = 33342199819478723163, which contains 333 as substring.

It is a Duffinian number.

2231641 is a lucky number.

It is not an unprimeable number, because it can be changed into a prime (2231681) 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, 4006 + ... + 4528.

It is an arithmetic number, because the mean of its divisors is an integer number (297108).

2^2231641 is an apocalyptic number.

It is an amenable number.

2231641 is a deficient number, since it is larger than the sum of its proper divisors (145223).

2231641 is a wasteful number, since it uses less digits than its factorization.

2231641 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 791.

The product of its digits is 288, while the sum is 19.

The square root of 2231641 is about 1493.8677987024. The cubic root of 2231641 is about 130.6796945164.

Adding to 2231641 its reverse (1461322), we get a palindrome (3692963).

The spelling of 2231641 in words is "two million, two hundred thirty-one thousand, six hundred forty-one".