18625745 has 16 divisors (see below), whose sum is σ = 23500800. Its totient is φ = 14144064.

The previous prime is 18625741. The next prime is 18625753. The reversal of 18625745 is 54752681.

It is a cyclic number.

It is not a de Polignac number, because 18625745 - 2² = 18625741 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 18625699 and 18625708.

It is not an unprimeable number, because it can be changed into a prime (18625741) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 16592 + ... + 17678.

It is an arithmetic number, because the mean of its divisors is an integer number (1468800).

Almost surely, 2^18625745 is an apocalyptic number.

It is an amenable number.

18625745 is a deficient number, since it is larger than the sum of its proper divisors (4875055).

18625745 is a wasteful number, since it uses less digits than its factorization.

18625745 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1264.

The product of its digits is 67200, while the sum is 38.

The square root of 18625745 is about 4315.7554379274. The cubic root of 18625745 is about 265.0764938781.

It can be divided in two parts, 18625 and 745, that multiplied together give a square (13875625 = 3725²).

The spelling of 18625745 in words is "eighteen million, six hundred twenty-five thousand, seven hundred forty-five".