43252123 has 4 divisors (see below), whose sum is σ = 43270120. Its totient is φ = 43234128.

The previous prime is 43252103. The next prime is 43252129. The reversal of 43252123 is 32125234.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 32125234 = 2 ⋅16062617.

It is a cyclic number.

It is not a de Polignac number, because 43252123 - 2⁵ = 43252091 is a prime.

It is a super-2 number, since 2×43252123² = 3741492288014258, which contains 22 as substring.

It is an alternating number because its digits alternate between even and odd.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 43252094 and 43252103.

It is not an unprimeable number, because it can be changed into a prime (43252129) 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, 4713 + ... + 10426.

It is an arithmetic number, because the mean of its divisors is an integer number (10817530).

Almost surely, 2^43252123 is an apocalyptic number.

43252123 is a deficient number, since it is larger than the sum of its proper divisors (17997).

43252123 is a wasteful number, since it uses less digits than its factorization.

43252123 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 17996.

The product of its digits is 1440, while the sum is 22.

The square root of 43252123 is about 6576.6346257033. The cubic root of 43252123 is about 351.0231909202.

Adding to 43252123 its reverse (32125234), we get a palindrome (75377357).

The spelling of 43252123 in words is "forty-three million, two hundred fifty-two thousand, one hundred twenty-three".