2331745 has 16 divisors (see below), whose sum is σ = 3119760. Its totient is φ = 1661184.

The previous prime is 2331743. The next prime is 2331751. The reversal of 2331745 is 5471332.

It can be written as a sum of positive squares in 8 ways, for example, as 33489 + 2298256 = 183^2 + 1516^2 .

It is a cyclic number.

It is not a de Polignac number, because 2331745 - 2¹ = 2331743 is a prime.

It is a super-3 number, since 3×2331745³ = 38033335744614955875, which contains 333 as substring.

It is an Ulam number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2331743) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 1267 + ... + 2503.

It is an arithmetic number, because the mean of its divisors is an integer number (194985).

2^2331745 is an apocalyptic number.

It is an amenable number.

2331745 is a deficient number, since it is larger than the sum of its proper divisors (788015).

2331745 is a wasteful number, since it uses less digits than its factorization.

2331745 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1284.

The product of its digits is 2520, while the sum is 25.

The square root of 2331745 is about 1527.0052390218. The cubic root of 2331745 is about 132.6051378642.

Subtracting from 2331745 its sum of digits (25), we obtain a triangular number (2331720 = T₂₁₅₉).

The spelling of 2331745 in words is "two million, three hundred thirty-one thousand, seven hundred forty-five".