73140663 has 4 divisors (see below), whose sum is σ = 97520888. Its totient is φ = 48760440.

The previous prime is 73140643. The next prime is 73140677. The reversal of 73140663 is 36604137.

It is a semiprime because it is the product of two primes.

It is not a de Polignac number, because 73140663 - 2¹⁶ = 73075127 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 73140663.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (73140623) by changing a digit.

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 3 ways as a sum of consecutive naturals, for example, 12190108 + ... + 12190113.

It is an arithmetic number, because the mean of its divisors is an integer number (24380222).

Almost surely, 2^73140663 is an apocalyptic number.

73140663 is a deficient number, since it is larger than the sum of its proper divisors (24380225).

73140663 is a wasteful number, since it uses less digits than its factorization.

73140663 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 24380224.

The product of its (nonzero) digits is 9072, while the sum is 30.

The square root of 73140663 is about 8552.2314631913. The cubic root of 73140663 is about 418.2021850266.

The spelling of 73140663 in words is "seventy-three million, one hundred forty thousand, six hundred sixty-three".