43154 has 4 divisors (see below), whose sum is σ = 64734. Its totient is φ = 21576.

The previous prime is 43151. The next prime is 43159. The reversal of 43154 is 45134.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 45134 = 2 ⋅22567.

It can be written as a sum of positive squares in only one way, i.e., 29929 + 13225 = 173^2 + 115^2 .

It is not an unprimeable number, because it can be changed into a prime (43151) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 10787 + ... + 10790.

2⁴³¹⁵⁴ is an apocalyptic number.

43154 is a deficient number, since it is larger than the sum of its proper divisors (21580).

43154 is a wasteful number, since it uses less digits than its factorization.

43154 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 21579.

The product of its digits is 240, while the sum is 17.

The square root of 43154 is about 207.7354086332. The cubic root of 43154 is about 35.0757542859.

Adding to 43154 its reverse (45134), we get a palindrome (88288).

The spelling of 43154 in words is "forty-three thousand, one hundred fifty-four".