1165053 has 4 divisors (see below), whose sum is σ = 1553408. Its totient is φ = 776700.

The previous prime is 1165051. The next prime is 1165057. The reversal of 1165053 is 3505611.

It is a happy number.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4, and also an emirpimes, since its reverse is a distinct semiprime: 3505611 = 3 ⋅1168537.

It is not a de Polignac number, because 1165053 - 2¹ = 1165051 is a prime.

It is a D-number.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1165051) 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 3 ways as a sum of consecutive naturals, for example, 194173 + ... + 194178.

It is an arithmetic number, because the mean of its divisors is an integer number (388352).

2^1165053 is an apocalyptic number.

It is an amenable number.

1165053 is a deficient number, since it is larger than the sum of its proper divisors (388355).

1165053 is an equidigital number, since it uses as much as digits as its factorization.

1165053 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 388354.

The product of its (nonzero) digits is 450, while the sum is 21.

The square root of 1165053 is about 1079.3762087428. The cubic root of 1165053 is about 105.2241018572.

The spelling of 1165053 in words is "one million, one hundred sixty-five thousand, fifty-three".