43113133 has 12 divisors (see below), whose sum is σ = 50459808. Its totient is φ = 36083880.

The previous prime is 43113131. The next prime is 43113137. The reversal of 43113133 is 33131134.

It is not a de Polignac number, because 43113133 - 2¹ = 43113131 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 43113133.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (43113131) 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, 11278 + ... + 14608.

It is an arithmetic number, because the mean of its divisors is an integer number (4204984).

Almost surely, 2^43113133 is an apocalyptic number.

43113133 is a gapful number since it is divisible by the number (43) formed by its first and last digit.

It is an amenable number.

43113133 is a deficient number, since it is larger than the sum of its proper divisors (7346675).

43113133 is an equidigital number, since it uses as much as digits as its factorization.

43113133 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3424 (or 3381 counting only the distinct ones).

The product of its digits is 324, while the sum is 19.

The square root of 43113133 is about 6566.0591681769. The cubic root of 43113133 is about 350.6467849852.

Adding to 43113133 its reverse (33131134), we get a palindrome (76244267).

The spelling of 43113133 in words is "forty-three million, one hundred thirteen thousand, one hundred thirty-three".