311934061 has 2 divisors, whose sum is σ = 311934062. Its totient is φ = 311934060.

The previous prime is 311934019. The next prime is 311934137. The reversal of 311934061 is 160439113.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 182088036 + 129846025 = 13494^2 + 11395^2 .

It is a cyclic number.

It is not a de Polignac number, because 311934061 - 2⁹ = 311933549 is a prime.

It is a super-3 number, since 3×311934061³ (a number of 26 digits) contains 333 as substring.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (311934361) 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, 155967030 + 155967031.

It is an arithmetic number, because the mean of its divisors is an integer number (155967031).

Almost surely, 2^311934061 is an apocalyptic number.

It is an amenable number.

311934061 is a deficient number, since it is larger than the sum of its proper divisors (1).

311934061 is an equidigital number, since it uses as much as digits as its factorization.

311934061 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 1944, while the sum is 28.

The square root of 311934061 is about 17661.6551036419. The cubic root of 311934061 is about 678.1945046613.

The spelling of 311934061 in words is "three hundred eleven million, nine hundred thirty-four thousand, sixty-one".