85244149 has 4 divisors (see below), whose sum is σ = 85998636. Its totient is φ = 84489664.

The previous prime is 85244143. The next prime is 85244161. The reversal of 85244149 is 94144258.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in 2 ways, for example, as 38663524 + 46580625 = 6218^2 + 6825^2 .

It is a cyclic number.

It is not a de Polignac number, because 85244149 - 2⁹ = 85243637 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (85244143) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 377074 + ... + 377299.

It is an arithmetic number, because the mean of its divisors is an integer number (21499659).

Almost surely, 2^85244149 is an apocalyptic number.

It is an amenable number.

85244149 is a deficient number, since it is larger than the sum of its proper divisors (754487).

85244149 is a wasteful number, since it uses less digits than its factorization.

85244149 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 754486.

The product of its digits is 46080, while the sum is 37.

The square root of 85244149 is about 9232.7758014586. The cubic root of 85244149 is about 440.1035379620.

The spelling of 85244149 in words is "eighty-five million, two hundred forty-four thousand, one hundred forty-nine".