5181023 has 2 divisors, whose sum is σ = 5181024. Its totient is φ = 5181022.

The previous prime is 5181019. The next prime is 5181067. The reversal of 5181023 is 3201815.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 5181023 - 2² = 5181019 is a prime.

It is a Sophie Germain prime.

It is a junction number, because it is equal to n+sod(n) for n = 5180986 and 5181004.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (5181013) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 2590511 + 2590512.

It is an arithmetic number, because the mean of its divisors is an integer number (2590512).

Almost surely, 2^5181023 is an apocalyptic number.

5181023 is a deficient number, since it is larger than the sum of its proper divisors (1).

5181023 is an equidigital number, since it uses as much as digits as its factorization.

5181023 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 240, while the sum is 20.

The square root of 5181023 is about 2276.1860644508. The cubic root of 5181023 is about 173.0368126412.

Adding to 5181023 its reverse (3201815), we get a palindrome (8382838).

The spelling of 5181023 in words is "five million, one hundred eighty-one thousand, twenty-three".