611712271 has 2 divisors, whose sum is σ = 611712272. Its totient is φ = 611712270.

The previous prime is 611712217. The next prime is 611712287. The reversal of 611712271 is 172217116.

Together with previous prime (611712217) it forms an Ormiston pair, because they use the same digits, order apart.

It is a strong prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-611712271 is a prime.

It is a super-3 number, since 3×611712271³ (a number of 27 digits) contains 333 as substring.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (611712671) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 305856135 + 305856136.

It is an arithmetic number, because the mean of its divisors is an integer number (305856136).

Almost surely, 2^611712271 is an apocalyptic number.

611712271 is a deficient number, since it is larger than the sum of its proper divisors (1).

611712271 is an equidigital number, since it uses as much as digits as its factorization.

611712271 is an evil number, because the sum of its binary digits is even.

The product of its digits is 1176, while the sum is 28.

The square root of 611712271 is about 24732.8176922889. The cubic root of 611712271 is about 848.8853999700.

Adding to 611712271 its reverse (172217116), we get a palindrome (783929387).

The spelling of 611712271 in words is "six hundred eleven million, seven hundred twelve thousand, two hundred seventy-one".