85140148 has 24 divisors (see below), whose sum is σ = 158041800. Its totient is φ = 39994368.

The previous prime is 85140113. The next prime is 85140161. The reversal of 85140148 is 84104158.

It can be written as a sum of positive squares in 4 ways, for example, as 94864 + 85045284 = 308^2 + 9222^2 .

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 in 7 ways as a sum of consecutive naturals, for example, 74848 + ... + 75976.

It is an arithmetic number, because the mean of its divisors is an integer number (6585075).

Almost surely, 2^85140148 is an apocalyptic number.

It is an amenable number.

85140148 is a deficient number, since it is larger than the sum of its proper divisors (72901652).

85140148 is a wasteful number, since it uses less digits than its factorization.

85140148 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2259 (or 2257 counting only the distinct ones).

The product of its (nonzero) digits is 5120, while the sum is 31.

The square root of 85140148 is about 9227.1419193594. The cubic root of 85140148 is about 439.9244842854.

The spelling of 85140148 in words is "eighty-five million, one hundred forty thousand, one hundred forty-eight".