73146539 has 4 divisors (see below), whose sum is σ = 73722624. Its totient is φ = 72570456.

The previous prime is 73146527. The next prime is 73146547. The reversal of 73146539 is 93564137.

It is a happy number.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 73146539 - 2¹⁶ = 73081003 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (73146589) 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, 287852 + ... + 288105.

It is an arithmetic number, because the mean of its divisors is an integer number (18430656).

Almost surely, 2^73146539 is an apocalyptic number.

73146539 is a deficient number, since it is larger than the sum of its proper divisors (576085).

73146539 is a wasteful number, since it uses less digits than its factorization.

73146539 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 576084.

The product of its digits is 68040, while the sum is 38.

The square root of 73146539 is about 8552.5749923634. The cubic root of 73146539 is about 418.2133839508.

The spelling of 73146539 in words is "seventy-three million, one hundred forty-six thousand, five hundred thirty-nine".