1881136 has 10 divisors (see below), whose sum is σ = 3644732. Its totient is φ = 940560.

The previous prime is 1881127. The next prime is 1881151. The reversal of 1881136 is 6311881.

It is a happy number.

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 58770 + ... + 58801.

2^1881136 is an apocalyptic number.

1881136 is a gapful number since it is divisible by the number (16) formed by its first and last digit.

It is an amenable number.

1881136 is a deficient number, since it is larger than the sum of its proper divisors (1763596).

1881136 is a wasteful number, since it uses less digits than its factorization.

1881136 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 117579 (or 117573 counting only the distinct ones).

The product of its digits is 1152, while the sum is 28.

The square root of 1881136 is about 1371.5451140958. The cubic root of 1881136 is about 123.4449699373. Note that the first 3 decimals are identical.

The spelling of 1881136 in words is "one million, eight hundred eighty-one thousand, one hundred thirty-six".