2231207 has 8 divisors (see below), whose sum is σ = 2540160. Its totient is φ = 1939960.

The previous prime is 2231171. The next prime is 2231209. The reversal of 2231207 is 7021322.

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

It is not a de Polignac number, because 2231207 - 2⁸ = 2230951 is a prime.

It is a super-3 number, since 3×2231207³ = 33322750856934680229, which contains 333 as substring.

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 (2231209) 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, 4157 + ... + 4662.

It is an arithmetic number, because the mean of its divisors is an integer number (317520).

2^2231207 is an apocalyptic number.

2231207 is a deficient number, since it is larger than the sum of its proper divisors (308953).

2231207 is a wasteful number, since it uses less digits than its factorization.

2231207 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 8853.

The product of its (nonzero) digits is 168, while the sum is 17.

The square root of 2231207 is about 1493.7225311282. The cubic root of 2231207 is about 130.6712226245.

Adding to 2231207 its reverse (7021322), we get a palindrome (9252529).

The spelling of 2231207 in words is "two million, two hundred thirty-one thousand, two hundred seven".