85223101 has 2 divisors, whose sum is σ = 85223102. Its totient is φ = 85223100.

The previous prime is 85223071. The next prime is 85223137. The reversal of 85223101 is 10132258.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 77528025 + 7695076 = 8805^2 + 2774^2 .

It is a cyclic number.

It is not a de Polignac number, because 85223101 - 2²³ = 76834493 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (85223191) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 42611550 + 42611551.

It is an arithmetic number, because the mean of its divisors is an integer number (42611551).

Almost surely, 2^85223101 is an apocalyptic number.

It is an amenable number.

85223101 is a deficient number, since it is larger than the sum of its proper divisors (1).

85223101 is an equidigital number, since it uses as much as digits as its factorization.

85223101 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 480, while the sum is 22.

The square root of 85223101 is about 9231.6358788678. The cubic root of 85223101 is about 440.0673123603.

Adding to 85223101 its reverse (10132258), we get a palindrome (95355359).

The spelling of 85223101 in words is "eighty-five million, two hundred twenty-three thousand, one hundred one".