18149275 has 18 divisors (see below), whose sum is σ = 23763732. Its totient is φ = 13748400.

The previous prime is 18149249. The next prime is 18149279. The reversal of 18149275 is 57294181.

It is not a de Polignac number, because 18149275 - 2¹³ = 18141083 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (18149279) by changing a digit.

It is a polite number, since it can be written in 17 ways as a sum of consecutive naturals, for example, 8020 + ... + 10030.

Almost surely, 2^18149275 is an apocalyptic number.

18149275 is a deficient number, since it is larger than the sum of its proper divisors (5614457).

18149275 is a wasteful number, since it uses less digits than its factorization.

18149275 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2059 (or 2035 counting only the distinct ones).

The product of its digits is 20160, while the sum is 37.

The square root of 18149275 is about 4260.1965917079. The cubic root of 18149275 is about 262.7966110531.

The spelling of 18149275 in words is "eighteen million, one hundred forty-nine thousand, two hundred seventy-five".