2275731 has 12 divisors (see below), whose sum is σ = 3302208. Its totient is φ = 1510224.

The previous prime is 2275723. The next prime is 2275733. The reversal of 2275731 is 1375722.

2275731 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 2275731 - 2³ = 2275723 is a prime.

It is a super-2 number, since 2×2275731² = 10357903168722, which contains 22 as substring.

2275731 is a lucky number.

It is a junction number, because it is equal to n+sod(n) for n = 2275695 and 2275704.

It is not an unprimeable number, because it can be changed into a prime (2275733) 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 11 ways as a sum of consecutive naturals, for example, 2206 + ... + 3068.

It is an arithmetic number, because the mean of its divisors is an integer number (275184).

2^2275731 is an apocalyptic number.

2275731 is a deficient number, since it is larger than the sum of its proper divisors (1026477).

2275731 is a wasteful number, since it uses less digits than its factorization.

2275731 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1162 (or 1159 counting only the distinct ones).

The product of its digits is 2940, while the sum is 27.

The square root of 2275731 is about 1508.5526175775. The cubic root of 2275731 is about 131.5346908816.

Subtracting from 2275731 its reverse (1375722), we obtain a palindrome (900009).

The spelling of 2275731 in words is "two million, two hundred seventy-five thousand, seven hundred thirty-one".