43125601 has 4 divisors (see below), whose sum is σ = 43528752. Its totient is φ = 42722452.

The previous prime is 43125587. The next prime is 43125647. The reversal of 43125601 is 10652134.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is not a de Polignac number, because 43125601 - 2²⁵ = 9571169 is a prime.

It is a super-2 number, since 2×43125601² = 3719634923222402, which contains 22 as substring.

It is a Smith number, since the sum of its digits (22) coincides with the sum of the digits of its prime factors. Since it is squarefree, it is also a hoax number.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (43125661) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 201415 + ... + 201628.

It is an arithmetic number, because the mean of its divisors is an integer number (10882188).

Almost surely, 2^43125601 is an apocalyptic number.

It is an amenable number.

43125601 is a deficient number, since it is larger than the sum of its proper divisors (403151).

43125601 is a wasteful number, since it uses less digits than its factorization.

43125601 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 403150.

The product of its (nonzero) digits is 720, while the sum is 22.

The square root of 43125601 is about 6567.0085274804. The cubic root of 43125601 is about 350.6805832152.

Adding to 43125601 its reverse (10652134), we get a palindrome (53777735).

The spelling of 43125601 in words is "forty-three million, one hundred twenty-five thousand, six hundred one".