43613461 has 2 divisors, whose sum is σ = 43613462. Its totient is φ = 43613460.

The previous prime is 43613459. The next prime is 43613467. The reversal of 43613461 is 16431634.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 24690961 + 18922500 = 4969^2 + 4350^2 .

It is a cyclic number.

It is not a de Polignac number, because 43613461 - 2¹ = 43613459 is a prime.

Together with 43613459, it forms a pair of twin primes.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (43613467) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 21806730 + 21806731.

It is an arithmetic number, because the mean of its divisors is an integer number (21806731).

Almost surely, 2^43613461 is an apocalyptic number.

It is an amenable number.

43613461 is a deficient number, since it is larger than the sum of its proper divisors (1).

43613461 is an equidigital number, since it uses as much as digits as its factorization.

43613461 is an evil number, because the sum of its binary digits is even.

The product of its digits is 5184, while the sum is 28.

The square root of 43613461 is about 6604.0488338594. The cubic root of 43613461 is about 351.9979903682.

The spelling of 43613461 in words is "forty-three million, six hundred thirteen thousand, four hundred sixty-one".