43132985 has 12 divisors (see below), whose sum is σ = 60210468. Its totient is φ = 29576736.

The previous prime is 43132979. The next prime is 43132987. The reversal of 43132985 is 58923134.

It can be written as a sum of positive squares in 2 ways, for example, as 24840256 + 18292729 = 4984^2 + 4277^2 .

It is not a de Polignac number, because 43132985 - 2⁸ = 43132729 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (35).

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (43132987) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 87782 + ... + 88271.

It is an arithmetic number, because the mean of its divisors is an integer number (5017539).

Almost surely, 2^43132985 is an apocalyptic number.

It is an amenable number.

43132985 is a deficient number, since it is larger than the sum of its proper divisors (17077483).

43132985 is a wasteful number, since it uses less digits than its factorization.

43132985 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 176072 (or 176065 counting only the distinct ones).

The product of its digits is 25920, while the sum is 35.

The square root of 43132985 is about 6567.5707076513. The cubic root of 43132985 is about 350.7005966766.

The spelling of 43132985 in words is "forty-three million, one hundred thirty-two thousand, nine hundred eighty-five".