612311471 has 2 divisors, whose sum is σ = 612311472. Its totient is φ = 612311470.

The previous prime is 612311449. The next prime is 612311503. The reversal of 612311471 is 174113216.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 612311471 - 2⁶ = 612311407 is a prime.

It is a super-3 number, since 3×612311471³ (a number of 27 digits) contains 333 as substring.

It is a self number, because there is not a number n which added to its sum of digits gives 612311471.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (612311071) 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, 306155735 + 306155736.

It is an arithmetic number, because the mean of its divisors is an integer number (306155736).

Almost surely, 2^612311471 is an apocalyptic number.

612311471 is a deficient number, since it is larger than the sum of its proper divisors (1).

612311471 is an equidigital number, since it uses as much as digits as its factorization.

612311471 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 1008, while the sum is 26.

The square root of 612311471 is about 24744.9281874084. The cubic root of 612311471 is about 849.1624834745.

Adding to 612311471 its reverse (174113216), we get a palindrome (786424687).

The spelling of 612311471 in words is "six hundred twelve million, three hundred eleven thousand, four hundred seventy-one".