85165207 has 2 divisors, whose sum is σ = 85165208. Its totient is φ = 85165206.

The previous prime is 85165187. The next prime is 85165217. The reversal of 85165207 is 70256158.

It is a strong prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-85165207 is a prime.

It is a super-2 number, since 2×85165207² = 14506224966705698, which contains 22 as substring.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (85165217) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 42582603 + 42582604.

It is an arithmetic number, because the mean of its divisors is an integer number (42582604).

Almost surely, 2^85165207 is an apocalyptic number.

85165207 is a deficient number, since it is larger than the sum of its proper divisors (1).

85165207 is an equidigital number, since it uses as much as digits as its factorization.

85165207 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 16800, while the sum is 34.

The square root of 85165207 is about 9228.4997155551. The cubic root of 85165207 is about 439.9676405265.

The spelling of 85165207 in words is "eighty-five million, one hundred sixty-five thousand, two hundred seven".