1986148 has 12 divisors (see below), whose sum is σ = 3528112. Its totient is φ = 978120.

The previous prime is 1986137. The next prime is 1986167. The reversal of 1986148 is 8416891.

It is a happy number.

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 3 ways as a sum of consecutive naturals, for example, 3438 + ... + 3973.

2^1986148 is an apocalyptic number.

It is an amenable number.

1986148 is a deficient number, since it is larger than the sum of its proper divisors (1541964).

1986148 is a wasteful number, since it uses less digits than its factorization.

1986148 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 7482 (or 7480 counting only the distinct ones).

The product of its digits is 13824, while the sum is 37.

The square root of 1986148 is about 1409.3076314276. The cubic root of 1986148 is about 125.7005570900.

The spelling of 1986148 in words is "one million, nine hundred eighty-six thousand, one hundred forty-eight".