2918081 has 4 divisors (see below), whose sum is σ = 2967600. Its totient is φ = 2868564.

The previous prime is 2918059. The next prime is 2918107. The reversal of 2918081 is 1808192.

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 a cyclic number.

It is not a de Polignac number, because 2918081 - 2¹⁸ = 2655937 is a prime.

It is a super-2 number, since 2×2918081² = 17030393445122, which contains 22 as substring.

It is a Duffinian number.

It is a nialpdrome in base 12.

It is not an unprimeable number, because it can be changed into a prime (2918581) 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, 24671 + ... + 24788.

It is an arithmetic number, because the mean of its divisors is an integer number (741900).

2^2918081 is an apocalyptic number.

It is an amenable number.

2918081 is a deficient number, since it is larger than the sum of its proper divisors (49519).

2918081 is an equidigital number, since it uses as much as digits as its factorization.

2918081 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 49518.

The product of its (nonzero) digits is 1152, while the sum is 29.

The square root of 2918081 is about 1708.2391518754. The cubic root of 2918081 is about 142.9000720031.

The spelling of 2918081 in words is "two million, nine hundred eighteen thousand, eighty-one".