2231361 has 24 divisors (see below), whose sum is σ = 3638880. Its totient is φ = 1350360.

The previous prime is 2231357. The next prime is 2231371. The reversal of 2231361 is 1631322.

It is not a de Polignac number, because 2231361 - 2² = 2231357 is a prime.

It is a super-3 number, since 3×2231361³ = 33329651235745496643, which contains 333 as substring.

It is an Ulam number.

It is not an unprimeable number, because it can be changed into a prime (2231311) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 2926 + ... + 3608.

It is an arithmetic number, because the mean of its divisors is an integer number (151620).

2^2231361 is an apocalyptic number.

It is an amenable number.

2231361 is a deficient number, since it is larger than the sum of its proper divisors (1407519).

2231361 is a wasteful number, since it uses less digits than its factorization.

2231361 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 714 (or 697 counting only the distinct ones).

The product of its digits is 216, while the sum is 18.

The square root of 2231361 is about 1493.7740793038. The cubic root of 2231361 is about 130.6742289054.

Adding to 2231361 its reverse (1631322), we get a palindrome (3862683).

The spelling of 2231361 in words is "two million, two hundred thirty-one thousand, three hundred sixty-one".