5111261 has 2 divisors, whose sum is σ = 5111262. Its totient is φ = 5111260.

The previous prime is 5111233. The next prime is 5111287. The reversal of 5111261 is 1621115.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 3204100 + 1907161 = 1790^2 + 1381^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-5111261 is a prime.

It is a super-2 number, since 2×5111261² = 52249978020242, which contains 22 as substring.

It is a Sophie Germain prime.

It is a Chen prime.

It is a Curzon number.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (5111201) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 2555630 + 2555631.

It is an arithmetic number, because the mean of its divisors is an integer number (2555631).

Almost surely, 2^5111261 is an apocalyptic number.

It is an amenable number.

5111261 is a deficient number, since it is larger than the sum of its proper divisors (1).

5111261 is an equidigital number, since it uses as much as digits as its factorization.

5111261 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 60, while the sum is 17.

The square root of 5111261 is about 2260.8098106652. The cubic root of 5111261 is about 172.2566589171.

Adding to 5111261 its reverse (1621115), we get a palindrome (6732376).

The spelling of 5111261 in words is "five million, one hundred eleven thousand, two hundred sixty-one".