5156549 has 2 divisors, whose sum is σ = 5156550. Its totient is φ = 5156548.

The previous prime is 5156539. The next prime is 5156551. The reversal of 5156549 is 9456515.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 5094049 + 62500 = 2257^2 + 250^2 .

It is a cyclic number.

It is not a de Polignac number, because 5156549 - 2⁴ = 5156533 is a prime.

Together with 5156551, it forms a pair of twin primes.

It is a Chen prime.

It is a plaindrome in base 15.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (5156539) 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 as a sum of consecutive naturals, namely, 2578274 + 2578275.

It is an arithmetic number, because the mean of its divisors is an integer number (2578275).

Almost surely, 2^5156549 is an apocalyptic number.

It is an amenable number.

5156549 is a deficient number, since it is larger than the sum of its proper divisors (1).

5156549 is an equidigital number, since it uses as much as digits as its factorization.

5156549 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 27000, while the sum is 35.

The square root of 5156549 is about 2270.8036022519. The cubic root of 5156549 is about 172.7639200256.

The spelling of 5156549 in words is "five million, one hundred fifty-six thousand, five hundred forty-nine".