2665131 has 16 divisors (see below), whose sum is σ = 4089600. Its totient is φ = 1512288.

The previous prime is 2665121. The next prime is 2665133. The reversal of 2665131 is 1315662.

2665131 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 2665131 - 2¹⁹ = 2140843 is a prime.

It is a super-2 number, since 2×2665131² = 14205846494322, which contains 22 as substring.

2665131 is a lucky number.

It is a plaindrome in base 16.

It is not an unprimeable number, because it can be changed into a prime (2665133) 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 15 ways as a sum of consecutive naturals, for example, 3405 + ... + 4113.

It is an arithmetic number, because the mean of its divisors is an integer number (255600).

2^2665131 is an apocalyptic number.

2665131 is a gapful number since it is divisible by the number (21) formed by its first and last digit.

2665131 is a deficient number, since it is larger than the sum of its proper divisors (1424469).

2665131 is a wasteful number, since it uses less digits than its factorization.

2665131 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 898.

The product of its digits is 1080, while the sum is 24.

The square root of 2665131 is about 1632.5228941733. The cubic root of 2665131 is about 138.6456304638.

The spelling of 2665131 in words is "two million, six hundred sixty-five thousand, one hundred thirty-one".