43116461 has 4 divisors (see below), whose sum is σ = 44168124. Its totient is φ = 42064800.

The previous prime is 43116427. The next prime is 43116497. The reversal of 43116461 is 16461134.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in 2 ways, for example, as 7344100 + 35772361 = 2710^2 + 5981^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-43116461 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 43116461.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (43116761) 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, 525770 + ... + 525851.

It is an arithmetic number, because the mean of its divisors is an integer number (11042031).

Almost surely, 2^43116461 is an apocalyptic number.

43116461 is a gapful number since it is divisible by the number (41) formed by its first and last digit.

It is an amenable number.

43116461 is a deficient number, since it is larger than the sum of its proper divisors (1051663).

43116461 is a wasteful number, since it uses less digits than its factorization.

43116461 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1051662.

The product of its digits is 1728, while the sum is 26.

The square root of 43116461 is about 6566.3125877466. The cubic root of 43116461 is about 350.6558071586.

Adding to 43116461 its reverse (16461134), we get a palindrome (59577595).

The spelling of 43116461 in words is "forty-three million, one hundred sixteen thousand, four hundred sixty-one".