1165375 has 8 divisors (see below), whose sum is σ = 1454544. Its totient is φ = 932200.

The previous prime is 1165363. The next prime is 1165379. The reversal of 1165375 is 5735611.

It is not a de Polignac number, because 1165375 - 2¹³ = 1157183 is a prime.

It is a Duffinian number.

1165375 is a lucky number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1165379) 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 7 ways as a sum of consecutive naturals, for example, 4537 + ... + 4786.

It is an arithmetic number, because the mean of its divisors is an integer number (181818).

2^1165375 is an apocalyptic number.

1165375 is a deficient number, since it is larger than the sum of its proper divisors (289169).

1165375 is an frugal number, since it uses more digits than its factorization.

1165375 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 9338 (or 9328 counting only the distinct ones).

The product of its digits is 3150, while the sum is 28.

The square root of 1165375 is about 1079.5253586646. The cubic root of 1165375 is about 105.2337949899.

It can be divided in two parts, 1165 and 375, that added together give a triangular number (1540 = T₅₅).

The spelling of 1165375 in words is "one million, one hundred sixty-five thousand, three hundred seventy-five".