18501148 has 6 divisors (see below), whose sum is σ = 32377016. Its totient is φ = 9250572.

The previous prime is 18501121. The next prime is 18501149. The reversal of 18501148 is 84110581.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (18501149) 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 as a sum of consecutive naturals, namely, 2312640 + ... + 2312647.

Almost surely, 2^18501148 is an apocalyptic number.

It is an amenable number.

18501148 is a deficient number, since it is larger than the sum of its proper divisors (13875868).

18501148 is a wasteful number, since it uses less digits than its factorization.

18501148 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4625291 (or 4625289 counting only the distinct ones).

The product of its (nonzero) digits is 1280, while the sum is 28.

The square root of 18501148 is about 4301.2960837403. The cubic root of 18501148 is about 264.4840941785.

The spelling of 18501148 in words is "eighteen million, five hundred one thousand, one hundred forty-eight".