2643081 has 16 divisors (see below), whose sum is σ = 4122624. Its totient is φ = 1474704.

The previous prime is 2643079. The next prime is 2643097. The reversal of 2643081 is 1803462.

It is a happy number.

It is not a de Polignac number, because 2643081 - 2¹ = 2643079 is a prime.

It is a super-2 number, since 2×2643081² = 13971754345122, which contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (2643061) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 561 + ... + 2366.

It is an arithmetic number, because the mean of its divisors is an integer number (257664).

2^2643081 is an apocalyptic number.

2643081 is a gapful number since it is divisible by the number (21) formed by its first and last digit.

It is an amenable number.

2643081 is a deficient number, since it is larger than the sum of its proper divisors (1479543).

2643081 is a wasteful number, since it uses less digits than its factorization.

2643081 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2980.

The product of its (nonzero) digits is 1152, while the sum is 24.

The square root of 2643081 is about 1625.7555166752. The cubic root of 2643081 is about 138.2622088851.

The spelling of 2643081 in words is "two million, six hundred forty-three thousand, eighty-one".