73122305 has 4 divisors (see below), whose sum is σ = 87746772. Its totient is φ = 58497840.

The previous prime is 73122293. The next prime is 73122307. The reversal of 73122305 is 50322137.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 50322137 = 23 ⋅2187919.

It can be written as a sum of positive squares in 2 ways, for example, as 25897921 + 47224384 = 5089^2 + 6872^2 .

It is not a de Polignac number, because 73122305 - 2¹² = 73118209 is a prime.

It is a super-3 number, since 3×73122305³ (a number of 25 digits) contains 333 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (73122307) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 7312226 + ... + 7312235.

It is an arithmetic number, because the mean of its divisors is an integer number (21936693).

Almost surely, 2^73122305 is an apocalyptic number.

It is an amenable number.

73122305 is a deficient number, since it is larger than the sum of its proper divisors (14624467).

73122305 is a wasteful number, since it uses less digits than its factorization.

73122305 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 14624466.

The product of its (nonzero) digits is 1260, while the sum is 23.

The square root of 73122305 is about 8551.1581087008. The cubic root of 73122305 is about 418.1671931000.

The spelling of 73122305 in words is "seventy-three million, one hundred twenty-two thousand, three hundred five".