73056161 has 2 divisors, whose sum is σ = 73056162. Its totient is φ = 73056160.

The previous prime is 73056143. The next prime is 73056187. The reversal of 73056161 is 16165037.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 72165025 + 891136 = 8495^2 + 944^2 .

It is a cyclic number.

It is not a de Polignac number, because 73056161 - 2²² = 68861857 is a prime.

It is a Chen prime.

It is not a weakly prime, because it can be changed into another prime (73056131) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 36528080 + 36528081.

It is an arithmetic number, because the mean of its divisors is an integer number (36528081).

Almost surely, 2^73056161 is an apocalyptic number.

It is an amenable number.

73056161 is a deficient number, since it is larger than the sum of its proper divisors (1).

73056161 is an equidigital number, since it uses as much as digits as its factorization.

73056161 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 3780, while the sum is 29.

The square root of 73056161 is about 8547.2896873804. The cubic root of 73056161 is about 418.0410683610.

The spelling of 73056161 in words is "seventy-three million, fifty-six thousand, one hundred sixty-one".