939555061 has 2 divisors, whose sum is σ = 939555062. Its totient is φ = 939555060.

The previous prime is 939555059. The next prime is 939555091. The reversal of 939555061 is 160555939.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 840652036 + 98903025 = 28994^2 + 9945^2 .

It is a cyclic number.

It is not a de Polignac number, because 939555061 - 2¹ = 939555059 is a prime.

Together with 939555059, it forms a pair of twin primes.

It is a junction number, because it is equal to n+sod(n) for n = 939554999 and 939555017.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (939555011) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 469777530 + 469777531.

It is an arithmetic number, because the mean of its divisors is an integer number (469777531).

Almost surely, 2^939555061 is an apocalyptic number.

It is an amenable number.

939555061 is a deficient number, since it is larger than the sum of its proper divisors (1).

939555061 is an equidigital number, since it uses as much as digits as its factorization.

939555061 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 182250, while the sum is 43.

The square root of 939555061 is about 30652.1624196402. The cubic root of 939555061 is about 979.4315254351.

The spelling of 939555061 in words is "nine hundred thirty-nine million, five hundred fifty-five thousand, sixty-one".