43140133 has 4 divisors (see below), whose sum is σ = 43183008. Its totient is φ = 43097260.

The previous prime is 43140121. The next prime is 43140193. The reversal of 43140133 is 33104134.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-43140133 is a prime.

It is a super-2 number, since 2×43140133² = 3722142150515378, which contains 22 as substring.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 43140133.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (43140103) 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, 19891 + ... + 21952.

It is an arithmetic number, because the mean of its divisors is an integer number (10795752).

Almost surely, 2^43140133 is an apocalyptic number.

It is an amenable number.

43140133 is a deficient number, since it is larger than the sum of its proper divisors (42875).

43140133 is a wasteful number, since it uses less digits than its factorization.

43140133 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 42874.

The product of its (nonzero) digits is 432, while the sum is 19.

The square root of 43140133 is about 6568.1148741477. The cubic root of 43140133 is about 350.7199683121.

Adding to 43140133 its reverse (33104134), we get a palindrome (76244267).

The spelling of 43140133 in words is "forty-three million, one hundred forty thousand, one hundred thirty-three".