1211275 has 12 divisors (see below), whose sum is σ = 1617952. Its totient is φ = 894240.

The previous prime is 1211261. The next prime is 1211279. The reversal of 1211275 is 5721121.

It is a de Polignac number, because none of the positive numbers 2^k-1211275 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (1211279) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 1539 + ... + 2188.

2^1211275 is an apocalyptic number.

1211275 is a deficient number, since it is larger than the sum of its proper divisors (406677).

1211275 is a wasteful number, since it uses less digits than its factorization.

1211275 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3750 (or 3745 counting only the distinct ones).

The product of its digits is 140, while the sum is 19.

The square root of 1211275 is about 1100.5793928654. The cubic root of 1211275 is about 106.5976387158.

Adding to 1211275 its reverse (5721121), we get a palindrome (6932396).

The spelling of 1211275 in words is "one million, two hundred eleven thousand, two hundred seventy-five".