43085951 has 2 divisors, whose sum is σ = 43085952. Its totient is φ = 43085950.

The previous prime is 43085921. The next prime is 43085983. The reversal of 43085951 is 15958034.

It is a weak prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-43085951 is a prime.

It is a Sophie Germain prime.

It is a Chen prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (43085921) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 21542975 + 21542976.

It is an arithmetic number, because the mean of its divisors is an integer number (21542976).

Almost surely, 2^43085951 is an apocalyptic number.

43085951 is a deficient number, since it is larger than the sum of its proper divisors (1).

43085951 is an equidigital number, since it uses as much as digits as its factorization.

43085951 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 21600, while the sum is 35.

The square root of 43085951 is about 6563.9889548963. The cubic root of 43085951 is about 350.5730774778.

The spelling of 43085951 in words is "forty-three million, eighty-five thousand, nine hundred fifty-one".