18948107 has 8 divisors (see below), whose sum is σ = 20132400. Its totient is φ = 17799264.

The previous prime is 18948089. The next prime is 18948121. The reversal of 18948107 is 70184981.

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

It is a cyclic number.

It is not a de Polignac number, because 18948107 - 2⁶ = 18948043 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (18948197) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (7) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 7757 + ... + 9902.

It is an arithmetic number, because the mean of its divisors is an integer number (2516550).

Almost surely, 2^18948107 is an apocalyptic number.

18948107 is a deficient number, since it is larger than the sum of its proper divisors (1184293).

18948107 is a wasteful number, since it uses less digits than its factorization.

18948107 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 17725.

The product of its (nonzero) digits is 16128, while the sum is 38.

The square root of 18948107 is about 4352.9423382351. The cubic root of 18948107 is about 266.5970111473.

It can be divided in two parts, 1894 and 8107, that added together give a palindrome (10001).

The spelling of 18948107 in words is "eighteen million, nine hundred forty-eight thousand, one hundred seven".