43245133 has 4 divisors (see below), whose sum is σ = 43413660. Its totient is φ = 43076608.

The previous prime is 43245131. The next prime is 43245173. The reversal of 43245133 is 33154234.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 33154234 = 2 ⋅16577117.

It can be written as a sum of positive squares in 2 ways, for example, as 42863209 + 381924 = 6547^2 + 618^2 .

It is a cyclic number.

It is not a de Polignac number, because 43245133 - 2¹ = 43245131 is a prime.

It is a Duffinian number.

It is a plaindrome in base 11.

It is a junction number, because it is equal to n+sod(n) for n = 43245098 and 43245107.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (43245131) 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, 83878 + ... + 84391.

It is an arithmetic number, because the mean of its divisors is an integer number (10853415).

Almost surely, 2^43245133 is an apocalyptic number.

It is an amenable number.

43245133 is a deficient number, since it is larger than the sum of its proper divisors (168527).

43245133 is a wasteful number, since it uses less digits than its factorization.

43245133 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 168526.

The product of its digits is 4320, while the sum is 25.

The square root of 43245133 is about 6576.1031774144. The cubic root of 43245133 is about 351.0042802161.

Adding to 43245133 its reverse (33154234), we get a palindrome (76399367).

The spelling of 43245133 in words is "forty-three million, two hundred forty-five thousand, one hundred thirty-three".