83070161 has 2 divisors, whose sum is σ = 83070162. Its totient is φ = 83070160.

The previous prime is 83070149. The next prime is 83070187. The reversal of 83070161 is 16107038.

It is an a-pointer prime, because the next prime (83070187) can be obtained adding 83070161 to its sum of digits (26).

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 60450625 + 22619536 = 7775^2 + 4756^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-83070161 is a prime.

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

It is a self number, because there is not a number n which added to its sum of digits gives 83070161.

It is not a weakly prime, because it can be changed into another prime (83070101) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 41535080 + 41535081.

It is an arithmetic number, because the mean of its divisors is an integer number (41535081).

Almost surely, 2^83070161 is an apocalyptic number.

It is an amenable number.

83070161 is a deficient number, since it is larger than the sum of its proper divisors (1).

83070161 is an equidigital number, since it uses as much as digits as its factorization.

83070161 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 1008, while the sum is 26.

The square root of 83070161 is about 9114.2833508730. The cubic root of 83070161 is about 436.3299430674.

Adding to 83070161 its reverse (16107038), we get a palindrome (99177199).

The spelling of 83070161 in words is "eighty-three million, seventy thousand, one hundred sixty-one".