73145339 has 8 divisors (see below), whose sum is σ = 77738688. Its totient is φ = 68584320.

The previous prime is 73145323. The next prime is 73145341. The reversal of 73145339 is 93354137.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 73145339 - 2⁴ = 73145323 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 73145299 and 73145308.

It is not an unprimeable number, because it can be changed into a prime (73147339) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 3332 + ... + 12545.

It is an arithmetic number, because the mean of its divisors is an integer number (9717336).

Almost surely, 2^73145339 is an apocalyptic number.

73145339 is a deficient number, since it is larger than the sum of its proper divisors (4593349).

73145339 is a wasteful number, since it uses less digits than its factorization.

73145339 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 16165.

The product of its digits is 34020, while the sum is 35.

The square root of 73145339 is about 8552.5048377654. The cubic root of 73145339 is about 418.2110969490.

The spelling of 73145339 in words is "seventy-three million, one hundred forty-five thousand, three hundred thirty-nine".