85143100 has 36 divisors (see below), whose sum is σ = 211156624. Its totient is φ = 29191680.

The previous prime is 85143083. The next prime is 85143103. The reversal of 85143100 is 134158.

It is a super-2 number, since 2×85143100² = 14498694955220000, which contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (85143103) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 60117 + ... + 61516.

Almost surely, 2^85143100 is an apocalyptic number.

It is an amenable number.

85143100 is an abundant number, since it is smaller than the sum of its proper divisors (126013524).

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

85143100 is a wasteful number, since it uses less digits than its factorization.

85143100 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 121654 (or 121647 counting only the distinct ones).

The product of its (nonzero) digits is 480, while the sum is 22.

The square root of 85143100 is about 9227.3018808317. The cubic root of 85143100 is about 439.9295686164.

Adding to 85143100 its reverse (134158), we get a palindrome (85277258).

The spelling of 85143100 in words is "eighty-five million, one hundred forty-three thousand, one hundred".