43135161 has 4 divisors (see below), whose sum is σ = 57513552. Its totient is φ = 28756772.

The previous prime is 43135139. The next prime is 43135193. The reversal of 43135161 is 16153134.

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 not a de Polignac number, because 43135161 - 2⁵ = 43135129 is a prime.

It is a super-2 number, since 2×43135161² = 3721284228991842, which contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (43135121) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 7189191 + ... + 7189196.

It is an arithmetic number, because the mean of its divisors is an integer number (14378388).

Almost surely, 2^43135161 is an apocalyptic number.

It is an amenable number.

43135161 is a deficient number, since it is larger than the sum of its proper divisors (14378391).

43135161 is a wasteful number, since it uses less digits than its factorization.

43135161 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 14378390.

The product of its digits is 1080, while the sum is 24.

The square root of 43135161 is about 6567.7363680343. The cubic root of 43135161 is about 350.7064940323.

Adding to 43135161 its reverse (16153134), we get a palindrome (59288295).

The spelling of 43135161 in words is "forty-three million, one hundred thirty-five thousand, one hundred sixty-one".