43125142 has 4 divisors (see below), whose sum is σ = 64687716. Its totient is φ = 21562570.

The previous prime is 43125139. The next prime is 43125149. The reversal of 43125142 is 24152134.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 24152134 = 2 ⋅12076067.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (43125149) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 10781284 + ... + 10781287.

It is an arithmetic number, because the mean of its divisors is an integer number (16171929).

Almost surely, 2^43125142 is an apocalyptic number.

43125142 is a deficient number, since it is larger than the sum of its proper divisors (21562574).

43125142 is a wasteful number, since it uses less digits than its factorization.

43125142 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 21562573.

The product of its digits is 960, while the sum is 22.

The square root of 43125142 is about 6566.9735799682. The cubic root of 43125142 is about 350.6793390744.

Adding to 43125142 its reverse (24152134), we get a palindrome (67277276).

The spelling of 43125142 in words is "forty-three million, one hundred twenty-five thousand, one hundred forty-two".