2312145 has 48 divisors (see below), whose sum is σ = 4560192. Its totient is φ = 1114560.

The previous prime is 2312137. The next prime is 2312147. The reversal of 2312145 is 5412132.

2312145 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is not a de Polignac number, because 2312145 - 2³ = 2312137 is a prime.

2312145 is a lucky number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2312147) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 13279 + ... + 13451.

It is an arithmetic number, because the mean of its divisors is an integer number (95004).

2^2312145 is an apocalyptic number.

It is an amenable number.

2312145 is a deficient number, since it is larger than the sum of its proper divisors (2248047).

2312145 is a wasteful number, since it uses less digits than its factorization.

2312145 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 204 (or 192 counting only the distinct ones).

The product of its digits is 240, while the sum is 18.

The square root of 2312145 is about 1520.5739048136. The cubic root of 2312145 is about 132.2325446306.

Adding to 2312145 its reverse (5412132), we get a palindrome (7724277).

The spelling of 2312145 in words is "two million, three hundred twelve thousand, one hundred forty-five".