319000061 has 2 divisors, whose sum is σ = 319000062. Its totient is φ = 319000060.

The previous prime is 319000043. The next prime is 319000069. The reversal of 319000061 is 160000913.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 179051161 + 139948900 = 13381^2 + 11830^2 .

It is a cyclic number.

It is not a de Polignac number, because 319000061 - 2¹⁸ = 318737917 is a prime.

It is a super-2 number, since 2×319000061² = 203522077836007442, which contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 318999997 and 319000042.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (319000069) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 159500030 + 159500031.

It is an arithmetic number, because the mean of its divisors is an integer number (159500031).

Almost surely, 2^319000061 is an apocalyptic number.

It is an amenable number.

319000061 is a deficient number, since it is larger than the sum of its proper divisors (1).

319000061 is an equidigital number, since it uses as much as digits as its factorization.

319000061 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 162, while the sum is 20.

The square root of 319000061 is about 17860.5728071638. The cubic root of 319000061 is about 683.2771887773.

Adding to 319000061 its reverse (160000913), we get a palindrome (479000974).

The spelling of 319000061 in words is "three hundred nineteen million, sixty-one", and thus it is an aban number.