73015061 has 4 divisors (see below), whose sum is σ = 83445792. Its totient is φ = 62584332.

The previous prime is 73015057. The next prime is 73015091. The reversal of 73015061 is 16051037.

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: 16051037 = 131 ⋅122527.

It is a cyclic number.

It is not a de Polignac number, because 73015061 - 2² = 73015057 is a prime.

It is a Duffinian number.

It is a Curzon number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (73015001) 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, 5215355 + ... + 5215368.

It is an arithmetic number, because the mean of its divisors is an integer number (20861448).

Almost surely, 2^73015061 is an apocalyptic number.

It is an amenable number.

73015061 is a deficient number, since it is larger than the sum of its proper divisors (10430731).

73015061 is a wasteful number, since it uses less digits than its factorization.

73015061 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 10430730.

The product of its (nonzero) digits is 630, while the sum is 23.

The square root of 73015061 is about 8544.8850782208. The cubic root of 73015061 is about 417.9626596835.

Adding to 73015061 its reverse (16051037), we get a palindrome (89066098).

The spelling of 73015061 in words is "seventy-three million, fifteen thousand, sixty-one".