18750573 has 12 divisors (see below), whose sum is σ = 27338688. Its totient is φ = 12382920.

The previous prime is 18750569. The next prime is 18750577. The reversal of 18750573 is 37505781.

18750573 is a `hidden beast` number, since 1 + 87 + 5 + 0 + 573 = 666.

It is an interprime number because it is at equal distance from previous prime (18750569) and next prime (18750577).

It is not a de Polignac number, because 18750573 - 2² = 18750569 is a prime.

It is a Smith number, since the sum of its digits (36) coincides with the sum of the digits of its prime factors.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (18750577) 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 11 ways as a sum of consecutive naturals, for example, 8773 + ... + 10698.

It is an arithmetic number, because the mean of its divisors is an integer number (2278224).

Almost surely, 2^18750573 is an apocalyptic number.

It is an amenable number.

18750573 is a deficient number, since it is larger than the sum of its proper divisors (8588115).

18750573 is a wasteful number, since it uses less digits than its factorization.

18750573 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 19584 (or 19581 counting only the distinct ones).

The product of its (nonzero) digits is 29400, while the sum is 36.

The square root of 18750573 is about 4330.1931827576. The cubic root of 18750573 is about 265.6673485052.

It can be divided in two parts, 187505 and 73, that added together give a triangular number (187578 = T₆₁₂).

The spelling of 18750573 in words is "eighteen million, seven hundred fifty thousand, five hundred seventy-three".