2758081 has 4 divisors (see below), whose sum is σ = 2768832. Its totient is φ = 2747332.

The previous prime is 2758079. The next prime is 2758087. The reversal of 2758081 is 1808572.

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 2758081 - 2¹ = 2758079 is a prime.

It is a super-2 number, since 2×2758081² = 15214021605122, which contains 22 as substring.

It is a Smith number, since the sum of its digits (31) coincides with the sum of the digits of its prime factors. Since it is squarefree, it is also a hoax number.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (2758087) 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, 4981 + ... + 5506.

It is an arithmetic number, because the mean of its divisors is an integer number (692208).

2^2758081 is an apocalyptic number.

It is an amenable number.

2758081 is a deficient number, since it is larger than the sum of its proper divisors (10751).

2758081 is a wasteful number, since it uses less digits than its factorization.

2758081 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 10750.

The product of its (nonzero) digits is 4480, while the sum is 31.

The square root of 2758081 is about 1660.7471210272. The cubic root of 2758081 is about 140.2390643299.

The spelling of 2758081 in words is "two million, seven hundred fifty-eight thousand, eighty-one".