1881275 has 12 divisors (see below), whose sum is σ = 2545224. Its totient is φ = 1368000.

The previous prime is 1881263. The next prime is 1881277. The reversal of 1881275 is 5721881.

It is a happy number.

It is not a de Polignac number, because 1881275 - 2⁶ = 1881211 is a prime.

It is not an unprimeable number, because it can be changed into a prime (1881277) by changing a digit.

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 11 ways as a sum of consecutive naturals, for example, 3146 + ... + 3695.

It is an arithmetic number, because the mean of its divisors is an integer number (212102).

2^1881275 is an apocalyptic number.

1881275 is a deficient number, since it is larger than the sum of its proper divisors (663949).

1881275 is a wasteful number, since it uses less digits than its factorization.

1881275 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 6862 (or 6857 counting only the distinct ones).

The product of its digits is 4480, while the sum is 32.

The square root of 1881275 is about 1371.5957859370. The cubic root of 1881275 is about 123.4480103746.

Subtracting 1881275 from its reverse (5721881), we obtain a triangular number (3840606 = T₂₇₇₁).

The spelling of 1881275 in words is "one million, eight hundred eighty-one thousand, two hundred seventy-five".