1145975 has 12 divisors (see below), whose sum is σ = 1483536. Its totient is φ = 876480.

The previous prime is 1145971. The next prime is 1145983. The reversal of 1145975 is 5795411.

It is not a de Polignac number, because 1145975 - 2² = 1145971 is a prime.

It is a hoax number, since the sum of its digits (32) coincides with the sum of the digits of its distinct prime factors.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1145971) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 422 + ... + 1571.

It is an arithmetic number, because the mean of its divisors is an integer number (123628).

2^1145975 is an apocalyptic number.

1145975 is a deficient number, since it is larger than the sum of its proper divisors (337561).

1145975 is a wasteful number, since it uses less digits than its factorization.

1145975 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2026 (or 2021 counting only the distinct ones).

The product of its digits is 6300, while the sum is 32.

The square root of 1145975 is about 1070.5022185871. The cubic root of 1145975 is about 104.6465819892.

It can be divided in two parts, 114597 and 5, that multiplied together give a triangular number (572985 = T₁₀₇₀).

The spelling of 1145975 in words is "one million, one hundred forty-five thousand, nine hundred seventy-five".