1165145 has 8 divisors (see below), whose sum is σ = 1406400. Its totient is φ = 926640.

The previous prime is 1165139. The next prime is 1165147. The reversal of 1165145 is 5415611.

It is a sphenic number, since it is the product of 3 distinct primes.

It is not a de Polignac number, because 1165145 - 2⁶ = 1165081 is a prime.

It is an Ulam number.

It is a plaindrome in base 14.

It is a self number, because there is not a number n which added to its sum of digits gives 1165145.

It is not an unprimeable number, because it can be changed into a prime (1165147) 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, 410 + ... + 1580.

It is an arithmetic number, because the mean of its divisors is an integer number (175800).

2^1165145 is an apocalyptic number.

It is an amenable number.

1165145 is a deficient number, since it is larger than the sum of its proper divisors (241255).

1165145 is a wasteful number, since it uses less digits than its factorization.

1165145 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1375.

The product of its digits is 600, while the sum is 23.

The square root of 1165145 is about 1079.4188251091. The cubic root of 1165145 is about 105.2268715059.

It can be divided in two parts, 11 and 65145, that added together give a palindrome (65156).

The spelling of 1165145 in words is "one million, one hundred sixty-five thousand, one hundred forty-five".