5108781 has 4 divisors (see below), whose sum is σ = 6811712. Its totient is φ = 3405852.

The previous prime is 5108773. The next prime is 5108813. The reversal of 5108781 is 1878015.

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 5108781 - 2³ = 5108773 is a prime.

It is a super-2 number, since 2×5108781² = 52199286611922, which contains 22 as substring.

It is a D-number.

It is a Duffinian number.

It is a Curzon number.

5108781 is a lucky number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (5108731) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 851461 + ... + 851466.

It is an arithmetic number, because the mean of its divisors is an integer number (1702928).

Almost surely, 2^5108781 is an apocalyptic number.

It is an amenable number.

5108781 is a deficient number, since it is larger than the sum of its proper divisors (1702931).

5108781 is a wasteful number, since it uses less digits than its factorization.

5108781 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1702930.

The product of its (nonzero) digits is 2240, while the sum is 30.

The square root of 5108781 is about 2260.2612680838. The cubic root of 5108781 is about 172.2287945848.

The spelling of 5108781 in words is "five million, one hundred eight thousand, seven hundred eighty-one".