1147975 has 12 divisors (see below), whose sum is σ = 1455264. Its totient is φ = 897920.

The previous prime is 1147969. The next prime is 1147981. The reversal of 1147975 is 5797411.

It is an interprime number because it is at equal distance from previous prime (1147969) and next prime (1147981).

It is not a de Polignac number, because 1147975 - 2⁹ = 1147463 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 1147975.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 687 + ... + 1663.

It is an arithmetic number, because the mean of its divisors is an integer number (121272).

2^1147975 is an apocalyptic number.

1147975 is a deficient number, since it is larger than the sum of its proper divisors (307289).

1147975 is an equidigital number, since it uses as much as digits as its factorization.

1147975 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1034 (or 1029 counting only the distinct ones).

The product of its digits is 8820, while the sum is 34.

The square root of 1147975 is about 1071.4359523555. The cubic root of 1147975 is about 104.7074243654.

It can be divided in two parts, 11 and 47975, that multiplied together give a palindrome (527725).

The spelling of 1147975 in words is "one million, one hundred forty-seven thousand, nine hundred seventy-five".