73201081 has 2 divisors, whose sum is σ = 73201082. Its totient is φ = 73201080.

The previous prime is 73201067. The next prime is 73201127. The reversal of 73201081 is 18010237.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 69039481 + 4161600 = 8309^2 + 2040^2 .

It is a cyclic number.

It is not a de Polignac number, because 73201081 - 2¹¹ = 73199033 is a prime.

It is a super-2 number, since 2×73201081² = 10716796519137122, which contains 22 as substring.

It is not a weakly prime, because it can be changed into another prime (73201001) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 36600540 + 36600541.

It is an arithmetic number, because the mean of its divisors is an integer number (36600541).

Almost surely, 2^73201081 is an apocalyptic number.

It is an amenable number.

73201081 is a deficient number, since it is larger than the sum of its proper divisors (1).

73201081 is an equidigital number, since it uses as much as digits as its factorization.

73201081 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 336, while the sum is 22.

The square root of 73201081 is about 8555.7630285089. The cubic root of 73201081 is about 418.3173056015.

The spelling of 73201081 in words is "seventy-three million, two hundred one thousand, eighty-one".