43741091 has 4 divisors (see below), whose sum is σ = 43890672. Its totient is φ = 43591512.

The previous prime is 43741079. The next prime is 43741099. The reversal of 43741091 is 19014734.

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

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-43741091 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (43741099) 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, 74351 + ... + 74936.

It is an arithmetic number, because the mean of its divisors is an integer number (10972668).

Almost surely, 2^43741091 is an apocalyptic number.

43741091 is a deficient number, since it is larger than the sum of its proper divisors (149581).

43741091 is a wasteful number, since it uses less digits than its factorization.

43741091 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 149580.

The product of its (nonzero) digits is 3024, while the sum is 29.

The square root of 43741091 is about 6613.7047862752. The cubic root of 43741091 is about 352.3410171188.

The spelling of 43741091 in words is "forty-three million, seven hundred forty-one thousand, ninety-one".