73545001 has 4 divisors (see below), whose sum is σ = 73618900. Its totient is φ = 73471104.

The previous prime is 73544993. The next prime is 73545013. The reversal of 73545001 is 10054537.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 10054537 = 83 ⋅121139.

It can be written as a sum of positive squares in 2 ways, for example, as 47279376 + 26265625 = 6876^2 + 5125^2 .

It is a cyclic number.

It is not a de Polignac number, because 73545001 - 2³ = 73544993 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (73545041) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 35436 + ... + 37453.

It is an arithmetic number, because the mean of its divisors is an integer number (18404725).

Almost surely, 2^73545001 is an apocalyptic number.

It is an amenable number.

73545001 is a deficient number, since it is larger than the sum of its proper divisors (73899).

73545001 is a wasteful number, since it uses less digits than its factorization.

73545001 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 73898.

The product of its (nonzero) digits is 2100, while the sum is 25.

The square root of 73545001 is about 8575.8382097612. The cubic root of 73545001 is about 418.9714077964.

Adding to 73545001 its reverse (10054537), we get a palindrome (83599538).

The spelling of 73545001 in words is "seventy-three million, five hundred forty-five thousand, one".