5230921 has 2 divisors, whose sum is σ = 5230922. Its totient is φ = 5230920.

The previous prime is 5230889. The next prime is 5230937. The reversal of 5230921 is 1290325.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 3240000 + 1990921 = 1800^2 + 1411^2 .

It is a cyclic number.

It is not a de Polignac number, because 5230921 - 2⁵ = 5230889 is a prime.

It is a Chen prime.

It is an alternating number because its digits alternate between odd and even.

5230921 is a lucky number.

It is a junction number, because it is equal to n+sod(n) for n = 5230892 and 5230901.

It is not a weakly prime, because it can be changed into another prime (5230021) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 2615460 + 2615461.

It is an arithmetic number, because the mean of its divisors is an integer number (2615461).

Almost surely, 2^5230921 is an apocalyptic number.

It is an amenable number.

5230921 is a deficient number, since it is larger than the sum of its proper divisors (1).

5230921 is an equidigital number, since it uses as much as digits as its factorization.

5230921 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 540, while the sum is 22.

The square root of 5230921 is about 2287.1206789324. The cubic root of 5230921 is about 173.5905398265.

The spelling of 5230921 in words is "five million, two hundred thirty thousand, nine hundred twenty-one".