2231601 has 8 divisors (see below), whose sum is σ = 3017664. Its totient is φ = 1466640.

The previous prime is 2231599. The next prime is 2231609. The reversal of 2231601 is 1061322.

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

It is not a de Polignac number, because 2231601 - 2¹ = 2231599 is a prime.

It is a super-3 number, since 3×2231601³ = 33340406971855124403, which contains 333 as substring.

It is a Curzon number.

It is not an unprimeable number, because it can be changed into a prime (2231609) 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, 5026 + ... + 5451.

It is an arithmetic number, because the mean of its divisors is an integer number (377208).

2^2231601 is an apocalyptic number.

It is an amenable number.

2231601 is a deficient number, since it is larger than the sum of its proper divisors (786063).

2231601 is a wasteful number, since it uses less digits than its factorization.

2231601 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 10551.

The product of its (nonzero) digits is 72, while the sum is 15.

The square root of 2231601 is about 1493.8544105769. The cubic root of 2231601 is about 130.6789137429.

Adding to 2231601 its reverse (1061322), we get a palindrome (3292923).

The spelling of 2231601 in words is "two million, two hundred thirty-one thousand, six hundred one".