2312189 has 12 divisors (see below), whose sum is σ = 2580732. Its totient is φ = 2069760.

The previous prime is 2312179. The next prime is 2312201. The reversal of 2312189 is 9812132.

It can be written as a sum of positive squares in 2 ways, for example, as 1800964 + 511225 = 1342^2 + 715^2 .

It is not a de Polignac number, because 2312189 - 2⁴ = 2312173 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2312159) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 11639 + ... + 11835.

It is an arithmetic number, because the mean of its divisors is an integer number (215061).

2^2312189 is an apocalyptic number.

It is an amenable number.

2312189 is a deficient number, since it is larger than the sum of its proper divisors (268543).

2312189 is a wasteful number, since it uses less digits than its factorization.

2312189 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 316 (or 305 counting only the distinct ones).

The product of its digits is 864, while the sum is 26.

The square root of 2312189 is about 1520.5883729662. The cubic root of 2312189 is about 132.2333834181.

The spelling of 2312189 in words is "two million, three hundred twelve thousand, one hundred eighty-nine".