10665131 has 4 divisors (see below), whose sum is σ = 10675752. Its totient is φ = 10654512.

The previous prime is 10665113. The next prime is 10665133. The reversal of 10665131 is 13156601.

It is a happy number.

It is a semiprime because it is the product of two primes, and also a brilliant number, because the two primes have the same length, and also an emirpimes, since its reverse is a distinct semiprime: 13156601 = 257 ⋅51193.

It is a cyclic number.

It is not a de Polignac number, because 10665131 - 2¹⁰ = 10664107 is a prime.

It is a super-2 number, since 2×10665131² = 227490038494322, which contains 22 as substring.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 10665097 and 10665106.

It is not an unprimeable number, because it can be changed into a prime (10665133) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 3626 + ... + 5871.

It is an arithmetic number, because the mean of its divisors is an integer number (2668938).

Almost surely, 2^10665131 is an apocalyptic number.

10665131 is a deficient number, since it is larger than the sum of its proper divisors (10621).

10665131 is an equidigital number, since it uses as much as digits as its factorization.

10665131 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 10620.

The product of its (nonzero) digits is 540, while the sum is 23.

The square root of 10665131 is about 3265.7512152643. The cubic root of 10665131 is about 220.1179188785.

The spelling of 10665131 in words is "ten million, six hundred sixty-five thousand, one hundred thirty-one".