2648181 has 4 divisors (see below), whose sum is σ = 3530912. Its totient is φ = 1765452.

The previous prime is 2648167. The next prime is 2648183. The reversal of 2648181 is 1818462.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is not a de Polignac number, because 2648181 - 2¹⁰ = 2647157 is a prime.

It is a super-2 number, since 2×2648181² = 14025725217522, which contains 22 as substring.

It is a D-number.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2648183) 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, 441361 + ... + 441366.

It is an arithmetic number, because the mean of its divisors is an integer number (882728).

2^2648181 is an apocalyptic number.

It is an amenable number.

2648181 is a deficient number, since it is larger than the sum of its proper divisors (882731).

2648181 is an equidigital number, since it uses as much as digits as its factorization.

2648181 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 882730.

The product of its digits is 3072, while the sum is 30.

The square root of 2648181 is about 1627.3232622930. The cubic root of 2648181 is about 138.3510804476.

It can be divided in two parts, 26481 and 81, that added together give a palindrome (26562).

The spelling of 2648181 in words is "two million, six hundred forty-eight thousand, one hundred eighty-one".