5122781 has 8 divisors (see below), whose sum is σ = 5316864. Its totient is φ = 4930560.

The previous prime is 5122771. The next prime is 5122783. The reversal of 5122781 is 1872215.

5122781 is digitally balanced in base 3, because in such base it contains all the possibile digits an equal number of times.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 5122781 - 2⁶ = 5122717 is a prime.

It is a super-2 number, since 2×5122781² = 52485770347922, which contains 22 as substring.

It is a Duffinian number.

It is a Curzon number.

It is a self number, because there is not a number n which added to its sum of digits gives 5122781.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (5122783) 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 7 ways as a sum of consecutive naturals, for example, 7646 + ... + 8288.

It is an arithmetic number, because the mean of its divisors is an integer number (664608).

Almost surely, 2^5122781 is an apocalyptic number.

It is an amenable number.

5122781 is a deficient number, since it is larger than the sum of its proper divisors (194083).

5122781 is a wasteful number, since it uses less digits than its factorization.

5122781 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 931.

The product of its digits is 1120, while the sum is 26.

The square root of 5122781 is about 2263.3561363603. The cubic root of 5122781 is about 172.3859751943.

Adding to 5122781 its reverse (1872215), we get a palindrome (6994996).

The spelling of 5122781 in words is "five million, one hundred twenty-two thousand, seven hundred eighty-one".