73500001 has 2 divisors, whose sum is σ = 73500002. Its totient is φ = 73500000.

The previous prime is 73499989. The next prime is 73500041. The reversal of 73500001 is 10000537.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 61214976 + 12285025 = 7824^2 + 3505^2 .

It is an emirp because it is prime and its reverse (10000537) is a distict prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-73500001 is a prime.

It is not a weakly prime, because it can be changed into another prime (73500041) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 36750000 + 36750001.

It is an arithmetic number, because the mean of its divisors is an integer number (36750001).

Almost surely, 2^73500001 is an apocalyptic number.

It is an amenable number.

73500001 is a deficient number, since it is larger than the sum of its proper divisors (1).

73500001 is an equidigital number, since it uses as much as digits as its factorization.

73500001 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 105, while the sum is 16.

The square root of 73500001 is about 8573.2141580623. The cubic root of 73500001 is about 418.8859383117.

Adding to 73500001 its reverse (10000537), we get a palindrome (83500538).

The spelling of 73500001 in words is "seventy-three million, five hundred thousand, one".