18741245 has 8 divisors (see below), whose sum is σ = 22515000. Its totient is φ = 14976000.

The previous prime is 18741227. The next prime is 18741269. The reversal of 18741245 is 54214781.

It is a happy number.

It can be written as a sum of positive squares in 4 ways, for example, as 1585081 + 17156164 = 1259^2 + 4142^2 .

It is a sphenic number, since it is the product of 3 distinct primes.

It is not a de Polignac number, because 18741245 - 2⁶ = 18741181 is a prime.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 4745 + ... + 7745.

It is an arithmetic number, because the mean of its divisors is an integer number (2814375).

Almost surely, 2^18741245 is an apocalyptic number.

It is an amenable number.

18741245 is a deficient number, since it is larger than the sum of its proper divisors (3773755).

18741245 is a wasteful number, since it uses less digits than its factorization.

18741245 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4255.

The product of its digits is 8960, while the sum is 32.

The square root of 18741245 is about 4329.1159605628. The cubic root of 18741245 is about 265.6232866325.

The spelling of 18741245 in words is "eighteen million, seven hundred forty-one thousand, two hundred forty-five".