43140965 has 16 divisors (see below), whose sum is σ = 60051072. Its totient is φ = 29139264.

The previous prime is 43140961. The next prime is 43140967. The reversal of 43140965 is 56904134.

It is not a de Polignac number, because 43140965 - 2² = 43140961 is a prime.

It is a super-2 number, since 2×43140965² = 3722285722262450, which contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (43140961) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 6854 + ... + 11543.

It is an arithmetic number, because the mean of its divisors is an integer number (3753192).

Almost surely, 2^43140965 is an apocalyptic number.

It is an amenable number.

43140965 is a deficient number, since it is larger than the sum of its proper divisors (16910107).

43140965 is a wasteful number, since it uses less digits than its factorization.

43140965 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 18476.

The product of its (nonzero) digits is 12960, while the sum is 32.

The square root of 43140965 is about 6568.1782101280. The cubic root of 43140965 is about 350.7222229578.

The spelling of 43140965 in words is "forty-three million, one hundred forty thousand, nine hundred sixty-five".