43154042 has 4 divisors (see below), whose sum is σ = 64731066. Its totient is φ = 21577020.

The previous prime is 43154029. The next prime is 43154047. The reversal of 43154042 is 24045134.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in only one way, i.e., 37589161 + 5564881 = 6131^2 + 2359^2 .

It is a junction number, because it is equal to n+sod(n) for n = 43153999 and 43154017.

It is not an unprimeable number, because it can be changed into a prime (43154047) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 10788509 + ... + 10788512.

Almost surely, 2^43154042 is an apocalyptic number.

43154042 is a deficient number, since it is larger than the sum of its proper divisors (21577024).

43154042 is a wasteful number, since it uses less digits than its factorization.

43154042 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 21577023.

The product of its (nonzero) digits is 1920, while the sum is 23.

The square root of 43154042 is about 6569.1736162169. The cubic root of 43154042 is about 350.7576566511.

Adding to 43154042 its reverse (24045134), we get a palindrome (67199176).

The spelling of 43154042 in words is "forty-three million, one hundred fifty-four thousand, forty-two".