85081037 has 2 divisors, whose sum is σ = 85081038. Its totient is φ = 85081036.

The previous prime is 85081021. The next prime is 85081043. The reversal of 85081037 is 73018058.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 79459396 + 5621641 = 8914^2 + 2371^2 .

It is a cyclic number.

It is not a de Polignac number, because 85081037 - 2⁴ = 85081021 is a prime.

It is a Chen prime.

It is a junction number, because it is equal to n+sod(n) for n = 85080994 and 85081012.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (85081067) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 42540518 + 42540519.

It is an arithmetic number, because the mean of its divisors is an integer number (42540519).

Almost surely, 2^85081037 is an apocalyptic number.

It is an amenable number.

85081037 is a deficient number, since it is larger than the sum of its proper divisors (1).

85081037 is an equidigital number, since it uses as much as digits as its factorization.

85081037 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 6720, while the sum is 32.

The square root of 85081037 is about 9223.9382586832. The cubic root of 85081037 is about 439.8226506334.

The spelling of 85081037 in words is "eighty-five million, eighty-one thousand, thirty-seven".