43125722 has 4 divisors (see below), whose sum is σ = 64688586. Its totient is φ = 21562860.

The previous prime is 43125703. The next prime is 43125749. The reversal of 43125722 is 22752134.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 22752134 = 2 ⋅11376067.

It can be written as a sum of positive squares in only one way, i.e., 42367081 + 758641 = 6509^2 + 871^2 .

It is a junction number, because it is equal to n+sod(n) for n = 43125691 and 43125700.

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 10781429 + ... + 10781432.

Almost surely, 2^43125722 is an apocalyptic number.

43125722 is a deficient number, since it is larger than the sum of its proper divisors (21562864).

43125722 is a wasteful number, since it uses less digits than its factorization.

43125722 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 21562863.

The product of its digits is 3360, while the sum is 26.

The square root of 43125722 is about 6567.0177401923. The cubic root of 43125722 is about 350.6809111898.

Adding to 43125722 its reverse (22752134), we get a palindrome (65877856).

The spelling of 43125722 in words is "forty-three million, one hundred twenty-five thousand, seven hundred twenty-two".