43155441 has 48 divisors (see below), whose sum is σ = 77475840. Its totient is φ = 22589280.

The previous prime is 43155439. The next prime is 43155457. The reversal of 43155441 is 14455134.

It is a happy number.

It is not a de Polignac number, because 43155441 - 2¹ = 43155439 is a prime.

It is a Curzon number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (43155421) by changing a digit.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 36526 + ... + 37688.

It is an arithmetic number, because the mean of its divisors is an integer number (1614080).

Almost surely, 2^43155441 is an apocalyptic number.

It is an amenable number.

43155441 is a deficient number, since it is larger than the sum of its proper divisors (34320399).

43155441 is a wasteful number, since it uses less digits than its factorization.

43155441 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1226 (or 1223 counting only the distinct ones).

The product of its digits is 4800, while the sum is 27.

The square root of 43155441 is about 6569.2800975449. The cubic root of 43155441 is about 350.7614469848.

The spelling of 43155441 in words is "forty-three million, one hundred fifty-five thousand, four hundred forty-one".