18916075 has 12 divisors (see below), whose sum is σ = 23514120. Its totient is φ = 15095360.

The previous prime is 18916063. The next prime is 18916099. The reversal of 18916075 is 57061981.

It is not a de Polignac number, because 18916075 - 2¹³ = 18907883 is a prime.

It is an unprimeable number.

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 11 ways as a sum of consecutive naturals, for example, 14031 + ... + 15319.

It is an arithmetic number, because the mean of its divisors is an integer number (1959510).

Almost surely, 2^18916075 is an apocalyptic number.

18916075 is a deficient number, since it is larger than the sum of its proper divisors (4598045).

18916075 is a wasteful number, since it uses less digits than its factorization.

18916075 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1886 (or 1881 counting only the distinct ones).

The product of its (nonzero) digits is 15120, while the sum is 37.

The square root of 18916075 is about 4349.2614315536. The cubic root of 18916075 is about 266.4466979418.

The spelling of 18916075 in words is "eighteen million, nine hundred sixteen thousand, seventy-five".