1172275 has 12 divisors (see below), whose sum is σ = 1565872. Its totient is φ = 865440.

The previous prime is 1172273. The next prime is 1172279. The reversal of 1172275 is 5722711.

It is a happy number.

It is not a de Polignac number, because 1172275 - 2¹ = 1172273 is a prime.

It is a hoax number, since the sum of its digits (25) coincides with the sum of the digits of its distinct prime factors.

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

It is an Ulam number.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (1172273) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 1479 + ... + 2128.

2^1172275 is an apocalyptic number.

1172275 is a deficient number, since it is larger than the sum of its proper divisors (393597).

1172275 is a wasteful number, since it uses less digits than its factorization.

1172275 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3630 (or 3625 counting only the distinct ones).

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

The square root of 1172275 is about 1082.7164910539. The cubic root of 1172275 is about 105.4410772850.

Adding to 1172275 its reverse (5722711), we get a palindrome (6894986).

The spelling of 1172275 in words is "one million, one hundred seventy-two thousand, two hundred seventy-five".