2664131 has 4 divisors (see below), whose sum is σ = 2669472. Its totient is φ = 2658792.

The previous prime is 2664127. The next prime is 2664149. The reversal of 2664131 is 1314662.

It is a happy number.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 2664131 - 2² = 2664127 is a prime.

It is a super-2 number, since 2×2664131² = 14195187970322, 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 = 2664097 and 2664106.

It is not an unprimeable number, because it can be changed into a prime (2664191) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 1835 + ... + 2948.

It is an arithmetic number, because the mean of its divisors is an integer number (667368).

2^2664131 is an apocalyptic number.

2664131 is a deficient number, since it is larger than the sum of its proper divisors (5341).

2664131 is an equidigital number, since it uses as much as digits as its factorization.

2664131 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 5340.

The product of its digits is 864, while the sum is 23.

The square root of 2664131 is about 1632.2165910197. The cubic root of 2664131 is about 138.6282876046.

Adding to 2664131 its reverse (1314662), we get a palindrome (3978793).

The spelling of 2664131 in words is "two million, six hundred sixty-four thousand, one hundred thirty-one".