85524149 has 6 divisors (see below), whose sum is σ = 90262710. Its totient is φ = 81022536.

The previous prime is 85524121. The next prime is 85524151. The reversal of 85524149 is 94142558.

It can be written as a sum of positive squares in only one way, i.e., 48094225 + 37429924 = 6935^2 + 6118^2 .

It is not a de Polignac number, because 85524149 - 2¹⁶ = 85458613 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 (85524199) 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, 118094 + ... + 118815.

It is an arithmetic number, because the mean of its divisors is an integer number (15043785).

Almost surely, 2^85524149 is an apocalyptic number.

It is an amenable number.

85524149 is a deficient number, since it is larger than the sum of its proper divisors (4738561).

85524149 is a wasteful number, since it uses less digits than its factorization.

85524149 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 236947 (or 236928 counting only the distinct ones).

The product of its digits is 57600, while the sum is 38.

The square root of 85524149 is about 9247.9267406268. The cubic root of 85524149 is about 440.5848781870.

The spelling of 85524149 in words is "eighty-five million, five hundred twenty-four thousand, one hundred forty-nine".