1131875 has 10 divisors (see below), whose sum is σ = 1415172. Its totient is φ = 905000.

The previous prime is 1131869. The next prime is 1131881. The reversal of 1131875 is 5781311.

It is an interprime number because it is at equal distance from previous prime (1131869) and next prime (1131881).

It is not a de Polignac number, because 1131875 - 2¹⁶ = 1066339 is a prime.

It is a super-2 number, since 2×1131875² = 2562282031250, which contains 22 as substring.

It is a Duffinian number.

It is an unprimeable number.

It is a polite number, since it can be written in 9 ways as a sum of consecutive naturals, for example, 281 + ... + 1530.

2^1131875 is an apocalyptic number.

1131875 is a deficient number, since it is larger than the sum of its proper divisors (283297).

1131875 is an frugal number, since it uses more digits than its factorization.

1131875 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1831 (or 1816 counting only the distinct ones).

The product of its digits is 840, while the sum is 26.

The square root of 1131875 is about 1063.8961415477. The cubic root of 1131875 is about 104.2156214338.

The spelling of 1131875 in words is "one million, one hundred thirty-one thousand, eight hundred seventy-five".