85142241 has 6 divisors (see below), whose sum is σ = 122983250. Its totient is φ = 56761488.

The previous prime is 85142237. The next prime is 85142263. The reversal of 85142241 is 14224158.

It can be written as a sum of positive squares in only one way, i.e., 85100625 + 41616 = 9225^2 + 204^2 .

It is not a de Polignac number, because 85142241 - 2² = 85142237 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (85142201) by changing a digit.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 4730116 + ... + 4730133.

Almost surely, 2^85142241 is an apocalyptic number.

It is an amenable number.

85142241 is a deficient number, since it is larger than the sum of its proper divisors (37841009).

85142241 is a wasteful number, since it uses less digits than its factorization.

85142241 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 9460255 (or 9460252 counting only the distinct ones).

The product of its digits is 2560, while the sum is 27.

The square root of 85142241 is about 9227.2553340633. The cubic root of 85142241 is about 439.9280891433.

Adding to 85142241 its reverse (14224158), we get a palindrome (99366399).

The spelling of 85142241 in words is "eighty-five million, one hundred forty-two thousand, two hundred forty-one".