85152140 has 24 divisors (see below), whose sum is σ = 179051040. Its totient is φ = 34016768.

The previous prime is 85152127. The next prime is 85152143. The reversal of 85152140 is 4125158.

It is not an unprimeable number, because it can be changed into a prime (85152143) by changing a digit.

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, 16289 + ... + 20871.

It is an arithmetic number, because the mean of its divisors is an integer number (7460460).

Almost surely, 2^85152140 is an apocalyptic number.

It is an amenable number.

85152140 is an abundant number, since it is smaller than the sum of its proper divisors (93898900).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

85152140 is a wasteful number, since it uses less digits than its factorization.

85152140 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 5521 (or 5519 counting only the distinct ones).

The product of its (nonzero) digits is 1600, while the sum is 26.

The square root of 85152140 is about 9227.7917184991. The cubic root of 85152140 is about 439.9451377878.

Adding to 85152140 its reverse (4125158), we get a palindrome (89277298).

The spelling of 85152140 in words is "eighty-five million, one hundred fifty-two thousand, one hundred forty".