83256161 has 2 divisors, whose sum is σ = 83256162. Its totient is φ = 83256160.

The previous prime is 83256149. The next prime is 83256203. The reversal of 83256161 is 16165238.

It is a happy number.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 67897600 + 15358561 = 8240^2 + 3919^2 .

It is a cyclic number.

It is not a de Polignac number, because 83256161 - 2¹⁴ = 83239777 is a prime.

It is a Sophie Germain prime.

It is a Chen prime.

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

It is a Curzon number.

It is not a weakly prime, because it can be changed into another prime (83256961) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 41628080 + 41628081.

It is an arithmetic number, because the mean of its divisors is an integer number (41628081).

Almost surely, 2^83256161 is an apocalyptic number.

It is an amenable number.

83256161 is a deficient number, since it is larger than the sum of its proper divisors (1).

83256161 is an equidigital number, since it uses as much as digits as its factorization.

83256161 is an evil number, because the sum of its binary digits is even.

The product of its digits is 8640, while the sum is 32.

The square root of 83256161 is about 9124.4814099213. The cubic root of 83256161 is about 436.6553582397.

The spelling of 83256161 in words is "eighty-three million, two hundred fifty-six thousand, one hundred sixty-one".