85143004 has 12 divisors (see below), whose sum is σ = 157765104. Its totient is φ = 40067264.

The previous prime is 85143001. The next prime is 85143013. The reversal of 85143004 is 40034158.

It is a super-2 number, since 2×85143004² = 14498662260288032, which contains 22 as substring.

It is a self number, because there is not a number n which added to its sum of digits gives 85143004.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (85143001) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 625984 + ... + 626119.

It is an arithmetic number, because the mean of its divisors is an integer number (13147092).

Almost surely, 2^85143004 is an apocalyptic number.

It is an amenable number.

85143004 is a deficient number, since it is larger than the sum of its proper divisors (72622100).

85143004 is a wasteful number, since it uses less digits than its factorization.

85143004 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1252124 (or 1252122 counting only the distinct ones).

The product of its (nonzero) digits is 1920, while the sum is 25.

The square root of 85143004 is about 9227.2966788762. The cubic root of 85143004 is about 439.9294032741.

The spelling of 85143004 in words is "eighty-five million, one hundred forty-three thousand, four".