1142875 has 16 divisors (see below), whose sum is σ = 1467648. Its totient is φ = 888000.

The previous prime is 1142863. The next prime is 1142881. The reversal of 1142875 is 5782411.

It is not a de Polignac number, because 1142875 - 2⁹ = 1142363 is a prime.

It is an Ulam number.

It is a Duffinian number.

It is a plaindrome in base 7.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 5014 + ... + 5236.

It is an arithmetic number, because the mean of its divisors is an integer number (91728).

2^1142875 is an apocalyptic number.

1142875 is a deficient number, since it is larger than the sum of its proper divisors (324773).

1142875 is an equidigital number, since it uses as much as digits as its factorization.

1142875 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 279 (or 269 counting only the distinct ones).

The product of its digits is 2240, while the sum is 28.

The square root of 1142875 is about 1069.0533195309. The cubic root of 1142875 is about 104.5521362516.

The spelling of 1142875 in words is "one million, one hundred forty-two thousand, eight hundred seventy-five".