85162229 has 2 divisors, whose sum is σ = 85162230. Its totient is φ = 85162228.

The previous prime is 85162223. The next prime is 85162247. The reversal of 85162229 is 92226158.

It is a happy number.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 71487025 + 13675204 = 8455^2 + 3698^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-85162229 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (85162223) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 42581114 + 42581115.

It is an arithmetic number, because the mean of its divisors is an integer number (42581115).

Almost surely, 2^85162229 is an apocalyptic number.

It is an amenable number.

85162229 is a deficient number, since it is larger than the sum of its proper divisors (1).

85162229 is an equidigital number, since it uses as much as digits as its factorization.

85162229 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 17280, while the sum is 35.

The square root of 85162229 is about 9228.3383661415. The cubic root of 85162229 is about 439.9625123020.

The spelling of 85162229 in words is "eighty-five million, one hundred sixty-two thousand, two hundred twenty-nine".