43131134 has 4 divisors (see below), whose sum is σ = 64696704. Its totient is φ = 21565566.

The previous prime is 43131131. The next prime is 43131161. The reversal of 43131134 is 43113134.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 43113134 = 2 ⋅21556567.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (43131131) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 10782782 + ... + 10782785.

It is an arithmetic number, because the mean of its divisors is an integer number (16174176).

Almost surely, 2^43131134 is an apocalyptic number.

43131134 is a deficient number, since it is larger than the sum of its proper divisors (21565570).

43131134 is a wasteful number, since it uses less digits than its factorization.

43131134 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 21565569.

The product of its digits is 432, while the sum is 20.

The square root of 43131134 is about 6567.4297864538. The cubic root of 43131134 is about 350.6955799738.

Adding to 43131134 its reverse (43113134), we get a palindrome (86244268).

The spelling of 43131134 in words is "forty-three million, one hundred thirty-one thousand, one hundred thirty-four".