73015039 has 4 divisors (see below), whose sum is σ = 73939360. Its totient is φ = 72090720.

The previous prime is 73015031. The next prime is 73015057. The reversal of 73015039 is 93051037.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 93051037 = 19 ⋅4897423.

It is a cyclic number.

It is not a de Polignac number, because 73015039 - 2³ = 73015031 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 73014998 and 73015016.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (73015031) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 462042 + ... + 462199.

It is an arithmetic number, because the mean of its divisors is an integer number (18484840).

Almost surely, 2^73015039 is an apocalyptic number.

73015039 is a gapful number since it is divisible by the number (79) formed by its first and last digit.

73015039 is a deficient number, since it is larger than the sum of its proper divisors (924321).

73015039 is an equidigital number, since it uses as much as digits as its factorization.

73015039 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 924320.

The product of its (nonzero) digits is 2835, while the sum is 28.

The square root of 73015039 is about 8544.8837909008. The cubic root of 73015039 is about 417.9626177050.

The spelling of 73015039 in words is "seventy-three million, fifteen thousand, thirty-nine".