1881975 has 24 divisors (see below), whose sum is σ = 3249792. Its totient is φ = 959200.

The previous prime is 1881961. The next prime is 1881983. The reversal of 1881975 is 5791881.

It is not a de Polignac number, because 1881975 - 2⁹ = 1881463 is a prime.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 1180 + ... + 2270.

It is an arithmetic number, because the mean of its divisors is an integer number (135408).

2^1881975 is an apocalyptic number.

1881975 is a gapful number since it is divisible by the number (15) formed by its first and last digit.

1881975 is a deficient number, since it is larger than the sum of its proper divisors (1367817).

1881975 is a wasteful number, since it uses less digits than its factorization.

1881975 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1127 (or 1122 counting only the distinct ones).

The product of its digits is 20160, while the sum is 39.

The square root of 1881975 is about 1371.8509394245. The cubic root of 1881975 is about 123.4633196536.

The spelling of 1881975 in words is "one million, eight hundred eighty-one thousand, nine hundred seventy-five".