43121141 has 4 divisors (see below), whose sum is σ = 49281312. Its totient is φ = 36960972.

The previous prime is 43121101. The next prime is 43121189. The reversal of 43121141 is 14112134.

It is a happy number.

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, and also an emirpimes, since its reverse is a distinct semiprime: 14112134 = 2 ⋅7056067.

It is a cyclic number.

It is not a de Polignac number, because 43121141 - 2¹⁰ = 43120117 is a prime.

It is a super-2 number, since 2×43121141² = 3718865602283762, which contains 22 as substring.

It is a Duffinian number.

It is a Curzon number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (43121101) 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, 3080075 + ... + 3080088.

It is an arithmetic number, because the mean of its divisors is an integer number (12320328).

Almost surely, 2^43121141 is an apocalyptic number.

It is an amenable number.

43121141 is a deficient number, since it is larger than the sum of its proper divisors (6160171).

43121141 is an equidigital number, since it uses as much as digits as its factorization.

43121141 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 6160170.

The product of its digits is 96, while the sum is 17.

The square root of 43121141 is about 6566.6689424700. The cubic root of 43121141 is about 350.6684938043.

Adding to 43121141 its reverse (14112134), we get a palindrome (57233275).

The spelling of 43121141 in words is "forty-three million, one hundred twenty-one thousand, one hundred forty-one".