1217275 has 24 divisors (see below), whose sum is σ = 1651680. Its totient is φ = 887040.

The previous prime is 1217269. The next prime is 1217297. The reversal of 1217275 is 5727121.

It is a happy number.

It is not a de Polignac number, because 1217275 - 2⁷ = 1217147 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (25).

1217275 is a lucky number.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 16639 + ... + 16711.

It is an arithmetic number, because the mean of its divisors is an integer number (68820).

2^1217275 is an apocalyptic number.

1217275 is a deficient number, since it is larger than the sum of its proper divisors (434405).

1217275 is a wasteful number, since it uses less digits than its factorization.

1217275 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 135 (or 130 counting only the distinct ones).

The product of its digits is 980, while the sum is 25.

The square root of 1217275 is about 1103.3018625925. The cubic root of 1217275 is about 106.7733578754.

It can be divided in two parts, 121 and 7275, that added together give a square (7396 = 86²).

The spelling of 1217275 in words is "one million, two hundred seventeen thousand, two hundred seventy-five".