73065137 has 4 divisors (see below), whose sum is σ = 73083120. Its totient is φ = 73047156.

The previous prime is 73065107. The next prime is 73065143. The reversal of 73065137 is 73156037.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4, and also an emirpimes, since its reverse is a distinct semiprime: 73156037 = 181 ⋅404177.

It is a cyclic number.

It is not a de Polignac number, because 73065137 - 2²⁴ = 56287921 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (73065107) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 314 + ... + 12092.

It is an arithmetic number, because the mean of its divisors is an integer number (18270780).

Almost surely, 2^73065137 is an apocalyptic number.

It is an amenable number.

73065137 is a deficient number, since it is larger than the sum of its proper divisors (17983).

73065137 is a wasteful number, since it uses less digits than its factorization.

73065137 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 17982.

The product of its (nonzero) digits is 13230, while the sum is 32.

The square root of 73065137 is about 8547.8147499814. The cubic root of 73065137 is about 418.0581884456.

The spelling of 73065137 in words is "seventy-three million, sixty-five thousand, one hundred thirty-seven".