73512345 has 16 divisors (see below), whose sum is σ = 118786752. Its totient is φ = 38817600.

The previous prime is 73512331. The next prime is 73512359. The reversal of 73512345 is 54321537.

It is an interprime number because it is at equal distance from previous prime (73512331) and next prime (73512359).

It is not a de Polignac number, because 73512345 - 2⁶ = 73512281 is a prime.

It is an unprimeable number.

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 15 ways as a sum of consecutive naturals, for example, 22747 + ... + 25776.

It is an arithmetic number, because the mean of its divisors is an integer number (7424172).

Almost surely, 2^73512345 is an apocalyptic number.

It is an amenable number.

73512345 is a deficient number, since it is larger than the sum of its proper divisors (45274407).

73512345 is a wasteful number, since it uses less digits than its factorization.

73512345 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 48632.

The product of its digits is 12600, while the sum is 30.

The square root of 73512345 is about 8573.9340445329. The cubic root of 73512345 is about 418.9093870124.

The spelling of 73512345 in words is "seventy-three million, five hundred twelve thousand, three hundred forty-five".