5194921 has 2 divisors, whose sum is σ = 5194922. Its totient is φ = 5194920.

The previous prime is 5194913. The next prime is 5194927. The reversal of 5194921 is 1294915.

5194921 is digitally balanced in base 3, because in such base it contains all the possibile digits an equal number of times.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 3667225 + 1527696 = 1915^2 + 1236^2 .

It is a cyclic number.

It is not a de Polignac number, because 5194921 - 2³ = 5194913 is a prime.

It is not a weakly prime, because it can be changed into another prime (5194927) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 2597460 + 2597461.

It is an arithmetic number, because the mean of its divisors is an integer number (2597461).

Almost surely, 2^5194921 is an apocalyptic number.

It is an amenable number.

5194921 is a deficient number, since it is larger than the sum of its proper divisors (1).

5194921 is an equidigital number, since it uses as much as digits as its factorization.

5194921 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 3240, while the sum is 31.

The square root of 5194921 is about 2279.2369337127. The cubic root of 5194921 is about 173.1913972014.

The spelling of 5194921 in words is "five million, one hundred ninety-four thousand, nine hundred twenty-one".