43231061 has 4 divisors (see below), whose sum is σ = 45506400. Its totient is φ = 40955724.

The previous prime is 43231043. The next prime is 43231063. The reversal of 43231061 is 16013234.

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 43231061 - 2²² = 39036757 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (43231063) 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, 1137641 + ... + 1137678.

It is an arithmetic number, because the mean of its divisors is an integer number (11376600).

Almost surely, 2^43231061 is an apocalyptic number.

It is an amenable number.

43231061 is a deficient number, since it is larger than the sum of its proper divisors (2275339).

43231061 is a wasteful number, since it uses less digits than its factorization.

43231061 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2275338.

The product of its (nonzero) digits is 432, while the sum is 20.

The square root of 43231061 is about 6575.0331558099. The cubic root of 43231061 is about 350.9662037303.

Adding to 43231061 its reverse (16013234), we get a palindrome (59244295).

The spelling of 43231061 in words is "forty-three million, two hundred thirty-one thousand, sixty-one".