1881150 has 24 divisors (see below), whose sum is σ = 4665624. Its totient is φ = 501600.

The previous prime is 1881127. The next prime is 1881151. The reversal of 1881150 is 511881.

It is a self number, because there is not a number n which added to its sum of digits gives 1881150.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1881151) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 6121 + ... + 6420.

It is an arithmetic number, because the mean of its divisors is an integer number (194401).

2^1881150 is an apocalyptic number.

1881150 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

1881150 is an abundant number, since it is smaller than the sum of its proper divisors (2784474).

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

1881150 is a wasteful number, since it uses less digits than its factorization.

1881150 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 12556 (or 12551 counting only the distinct ones).

The product of its (nonzero) digits is 320, while the sum is 24.

The square root of 1881150 is about 1371.5502178192. The cubic root of 1881150 is about 123.4452761752.

Subtracting from 1881150 its product of nonzero digits (320), we obtain a triangular number (1880830 = T₁₉₃₉).

The spelling of 1881150 in words is "one million, eight hundred eighty-one thousand, one hundred fifty".