1165063 has 4 divisors (see below), whose sum is σ = 1182520. Its totient is φ = 1147608.

The previous prime is 1165057. The next prime is 1165069. The reversal of 1165063 is 3605611.

It is a semiprime because it is the product of two primes.

It is an interprime number because it is at equal distance from previous prime (1165057) and next prime (1165069).

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-1165063 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1165069) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 8628 + ... + 8761.

It is an arithmetic number, because the mean of its divisors is an integer number (295630).

2^1165063 is an apocalyptic number.

1165063 is a deficient number, since it is larger than the sum of its proper divisors (17457).

1165063 is an equidigital number, since it uses as much as digits as its factorization.

1165063 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 17456.

The product of its (nonzero) digits is 540, while the sum is 22.

The square root of 1165063 is about 1079.3808410380. The cubic root of 1165063 is about 105.2244029131.

The spelling of 1165063 in words is "one million, one hundred sixty-five thousand, sixty-three".