73304131 has 4 divisors (see below), whose sum is σ = 73333512. Its totient is φ = 73274752.

The previous prime is 73304129. The next prime is 73304177. The reversal of 73304131 is 13140337.

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 73304131 - 2¹ = 73304129 is a prime.

It is a super-2 number, since 2×73304131² = 10746991243330322, which contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (73304531) 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, 10561 + ... + 16066.

It is an arithmetic number, because the mean of its divisors is an integer number (18333378).

Almost surely, 2^73304131 is an apocalyptic number.

73304131 is a deficient number, since it is larger than the sum of its proper divisors (29381).

73304131 is a wasteful number, since it uses less digits than its factorization.

73304131 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 29380.

The product of its (nonzero) digits is 756, while the sum is 22.

The square root of 73304131 is about 8561.7831670745. The cubic root of 73304131 is about 418.5135111998.

Adding to 73304131 its reverse (13140337), we get a palindrome (86444468).

The spelling of 73304131 in words is "seventy-three million, three hundred four thousand, one hundred thirty-one".