43131234 has 16 divisors (see below), whose sum is σ = 86641920. Its totient is φ = 14313840.

The previous prime is 43131223. The next prime is 43131239. The reversal of 43131234 is 43213134.

It is a self number, because there is not a number n which added to its sum of digits gives 43131234.

It is not an unprimeable number, because it can be changed into a prime (43131239) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 14322 + ... + 17069.

It is an arithmetic number, because the mean of its divisors is an integer number (5415120).

Almost surely, 2^43131234 is an apocalyptic number.

43131234 is an abundant number, since it is smaller than the sum of its proper divisors (43510686).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

43131234 is a wasteful number, since it uses less digits than its factorization.

43131234 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 31625.

The product of its digits is 864, while the sum is 21.

The square root of 43131234 is about 6567.4373997778. The cubic root of 43131234 is about 350.6958510041.

Adding to 43131234 its reverse (43213134), we get a palindrome (86344368).

It can be divided in two parts, 43131 and 234, that added together give a triangular number (43365 = T₂₉₄).

The spelling of 43131234 in words is "forty-three million, one hundred thirty-one thousand, two hundred thirty-four".