43086149 has 4 divisors (see below), whose sum is σ = 43127820. Its totient is φ = 43044480.

The previous prime is 43086119. The next prime is 43086151. The reversal of 43086149 is 94168034.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in 2 ways, for example, as 18335524 + 24750625 = 4282^2 + 4975^2 .

It is a cyclic number.

It is not a de Polignac number, because 43086149 - 2¹⁶ = 43020613 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (43086119) 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 3 ways as a sum of consecutive naturals, for example, 19244 + ... + 21365.

It is an arithmetic number, because the mean of its divisors is an integer number (10781955).

Almost surely, 2^43086149 is an apocalyptic number.

It is an amenable number.

43086149 is a deficient number, since it is larger than the sum of its proper divisors (41671).

43086149 is a wasteful number, since it uses less digits than its factorization.

43086149 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 41670.

The product of its (nonzero) digits is 20736, while the sum is 35.

The square root of 43086149 is about 6564.0040371712. The cubic root of 43086149 is about 350.5736144925.

The spelling of 43086149 in words is "forty-three million, eighty-six thousand, one hundred forty-nine".