85415227 has 2 divisors, whose sum is σ = 85415228. Its totient is φ = 85415226.

The previous prime is 85415207. The next prime is 85415249. The reversal of 85415227 is 72251458.

It is a happy number.

It is a weak prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-85415227 is a prime.

It is a super-2 number, since 2×85415227² = 14591522006923058, which contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 85415192 and 85415201.

It is not a weakly prime, because it can be changed into another prime (85415207) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 42707613 + 42707614.

It is an arithmetic number, because the mean of its divisors is an integer number (42707614).

Almost surely, 2^85415227 is an apocalyptic number.

85415227 is a deficient number, since it is larger than the sum of its proper divisors (1).

85415227 is an equidigital number, since it uses as much as digits as its factorization.

85415227 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 22400, while the sum is 34.

The square root of 85415227 is about 9242.0358687899. The cubic root of 85415227 is about 440.3977584324.

The spelling of 85415227 in words is "eighty-five million, four hundred fifteen thousand, two hundred twenty-seven".