1217875 has 8 divisors (see below), whose sum is σ = 1520064. Its totient is φ = 974200.

The previous prime is 1217861. The next prime is 1217893. The reversal of 1217875 is 5787121.

It is a happy number.

It is not a de Polignac number, because 1217875 - 2¹¹ = 1215827 is a prime.

It is a Duffinian number.

1217875 is a lucky number.

It is a zygodrome in base 9.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 4747 + ... + 4996.

It is an arithmetic number, because the mean of its divisors is an integer number (190008).

2^1217875 is an apocalyptic number.

1217875 is a deficient number, since it is larger than the sum of its proper divisors (302189).

1217875 is an frugal number, since it uses more digits than its factorization.

1217875 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 9758 (or 9748 counting only the distinct ones).

The product of its digits is 3920, while the sum is 31.

The square root of 1217875 is about 1103.5737401733. The cubic root of 1217875 is about 106.7908980072.

The spelling of 1217875 in words is "one million, two hundred seventeen thousand, eight hundred seventy-five".