43142085 has 64 divisors (see below), whose sum is σ = 89026560. Its totient is φ = 19414080.

The previous prime is 43142083. The next prime is 43142087. The reversal of 43142085 is 58024134.

It is an interprime number because it is at equal distance from previous prime (43142083) and next prime (43142087).

It is not a de Polignac number, because 43142085 - 2¹ = 43142083 is a prime.

It is a super-2 number, since 2×43142085² = 3722478996294450, which contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (27).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (43142083) by changing a digit.

It is a polite number, since it can be written in 63 ways as a sum of consecutive naturals, for example, 66774 + ... + 67416.

It is an arithmetic number, because the mean of its divisors is an integer number (1391040).

Almost surely, 2^43142085 is an apocalyptic number.

43142085 is a gapful number since it is divisible by the number (45) formed by its first and last digit.

It is an amenable number.

43142085 is an abundant number, since it is smaller than the sum of its proper divisors (45884475).

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

43142085 is a wasteful number, since it uses less digits than its factorization.

43142085 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 735 (or 729 counting only the distinct ones).

The product of its (nonzero) digits is 3840, while the sum is 27.

The square root of 43142085 is about 6568.2634691370. The cubic root of 43142085 is about 350.7252580119.

The spelling of 43142085 in words is "forty-three million, one hundred forty-two thousand, eighty-five".