18812148 has 12 divisors (see below), whose sum is σ = 43895040. Its totient is φ = 6270712.

The previous prime is 18812119. The next prime is 18812177. The reversal of 18812148 is 84121881.

It is an interprime number because it is at equal distance from previous prime (18812119) and next prime (18812177).

It is a tau number, because it is divible by the number of its divisors (12).

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 783828 + ... + 783851.

It is an arithmetic number, because the mean of its divisors is an integer number (3657920).

Almost surely, 2^18812148 is an apocalyptic number.

It is an amenable number.

18812148 is an abundant number, since it is smaller than the sum of its proper divisors (25082892).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

18812148 is a wasteful number, since it uses less digits than its factorization.

18812148 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1567686 (or 1567684 counting only the distinct ones).

The product of its digits is 4096, while the sum is 33.

The square root of 18812148 is about 4337.2973151491. The cubic root of 18812148 is about 265.9578390600.

The spelling of 18812148 in words is "eighteen million, eight hundred twelve thousand, one hundred forty-eight".