73130751 has 6 divisors (see below), whose sum is σ = 105633320. Its totient is φ = 48753828.

The previous prime is 73130723. The next prime is 73130789. The reversal of 73130751 is 15703137.

It is not a de Polignac number, because 73130751 - 2⁷ = 73130623 is a prime.

It is a super-3 number, since 3×73130751³ (a number of 25 digits) contains 333 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (73130051) by changing a digit.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 4062811 + ... + 4062828.

Almost surely, 2^73130751 is an apocalyptic number.

73130751 is a deficient number, since it is larger than the sum of its proper divisors (32502569).

73130751 is a wasteful number, since it uses less digits than its factorization.

73130751 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 8125645 (or 8125642 counting only the distinct ones).

The product of its (nonzero) digits is 2205, while the sum is 27.

The square root of 73130751 is about 8551.6519456769. The cubic root of 73130751 is about 418.1832926296.

Adding to 73130751 its reverse (15703137), we get a palindrome (88833888).

The spelling of 73130751 in words is "seventy-three million, one hundred thirty thousand, seven hundred fifty-one".