1047263165 has 16 divisors (see below), whose sum is σ = 1382185728. Its totient is φ = 756906816.

The previous prime is 1047263159. The next prime is 1047263177. The reversal of 1047263165 is 5613627401.

It is a cyclic number.

It is not a de Polignac number, because 1047263165 - 2⁴ = 1047263149 is a prime.

It is a Duffinian number.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 168347 + ... + 174456.

It is an arithmetic number, because the mean of its divisors is an integer number (86386608).

Almost surely, 2^1047263165 is an apocalyptic number.

It is an amenable number.

1047263165 is a deficient number, since it is larger than the sum of its proper divisors (334922563).

1047263165 is a wasteful number, since it uses less digits than its factorization.

1047263165 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 342868.

The product of its (nonzero) digits is 30240, while the sum is 35.

The square root of 1047263165 is about 32361.4456568306. The cubic root of 1047263165 is about 1015.5125061864.

It can be divided in two parts, 10472 and 63165, that added together give a palindrome (73637).

The spelling of 1047263165 in words is "one billion, forty-seven million, two hundred sixty-three thousand, one hundred sixty-five".