73130919 has 16 divisors (see below), whose sum is σ = 100627968. Its totient is φ = 47215872.

The previous prime is 73130909. The next prime is 73130933. The reversal of 73130919 is 91903137.

It is not a de Polignac number, because 73130919 - 2⁴ = 73130903 is a prime.

It is a super-2 number, since 2×73130919² = 10696262627569122, which contains 22 as substring.

It is a self number, because there is not a number n which added to its sum of digits gives 73130919.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (73130909) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 11004 + ... + 16350.

It is an arithmetic number, because the mean of its divisors is an integer number (6289248).

Almost surely, 2^73130919 is an apocalyptic number.

73130919 is a deficient number, since it is larger than the sum of its proper divisors (27497049).

73130919 is a wasteful number, since it uses less digits than its factorization.

73130919 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 5494.

The product of its (nonzero) digits is 5103, while the sum is 33.

The square root of 73130919 is about 8551.6617683349. The cubic root of 73130919 is about 418.1836128539.

The spelling of 73130919 in words is "seventy-three million, one hundred thirty thousand, nine hundred nineteen".