85144148 has 6 divisors (see below), whose sum is σ = 149002266. Its totient is φ = 42572072.

The previous prime is 85144121. The next prime is 85144153. The reversal of 85144148 is 84144158.

It is a happy number.

It can be written as a sum of positive squares in only one way, i.e., 49168144 + 35976004 = 7012^2 + 5998^2 .

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 10643015 + ... + 10643022.

It is an arithmetic number, because the mean of its divisors is an integer number (24833711).

Almost surely, 2^85144148 is an apocalyptic number.

It is an amenable number.

85144148 is a deficient number, since it is larger than the sum of its proper divisors (63858118).

85144148 is a wasteful number, since it uses less digits than its factorization.

85144148 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 21286041 (or 21286039 counting only the distinct ones).

The product of its digits is 20480, while the sum is 35.

The square root of 85144148 is about 9227.3586686549. The cubic root of 85144148 is about 439.9313735945.

The spelling of 85144148 in words is "eighty-five million, one hundred forty-four thousand, one hundred forty-eight".