1167231565 has 8 divisors (see below), whose sum is σ = 1404647928. Its totient is φ = 931138560.

The previous prime is 1167231553. The next prime is 1167231599. The reversal of 1167231565 is 5651327611.

It can be written as a sum of positive squares in 4 ways, for example, as 365039236 + 802192329 = 19106^2 + 28323^2 .

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

It is not a de Polignac number, because 1167231565 - 2¹⁵ = 1167198797 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 (13) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 328896 + ... + 332425.

It is an arithmetic number, because the mean of its divisors is an integer number (175580991).

Almost surely, 2^1167231565 is an apocalyptic number.

It is an amenable number.

1167231565 is a deficient number, since it is larger than the sum of its proper divisors (237416363).

1167231565 is an equidigital number, since it uses as much as digits as its factorization.

1167231565 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 661679.

The product of its digits is 37800, while the sum is 37.

The square root of 1167231565 is about 34164.7708173200. The cubic root of 1167231565 is about 1052.8964817653.

The spelling of 1167231565 in words is "one billion, one hundred sixty-seven million, two hundred thirty-one thousand, five hundred sixty-five".