1145456765 has 8 divisors (see below), whose sum is σ = 1374755640. Its totient is φ = 916227072.

The previous prime is 1145456759. The next prime is 1145456779. The reversal of 1145456765 is 5676545411.

It is a happy number.

It can be written as a sum of positive squares in 4 ways, for example, as 6461764 + 1138995001 = 2542^2 + 33749^2 .

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

It is a cyclic number.

It is not a de Polignac number, because 1145456765 - 2⁴ = 1145456749 is a prime.

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, 31817 + ... + 57473.

It is an arithmetic number, because the mean of its divisors is an integer number (171844455).

Almost surely, 2^1145456765 is an apocalyptic number.

It is an amenable number.

1145456765 is a deficient number, since it is larger than the sum of its proper divisors (229298875).

1145456765 is an equidigital number, since it uses as much as digits as its factorization.

1145456765 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 34591.

The product of its digits is 504000, while the sum is 44.

The square root of 1145456765 is about 33844.5972793295. The cubic root of 1145456765 is about 1046.3080511843.

The spelling of 1145456765 in words is "one billion, one hundred forty-five million, four hundred fifty-six thousand, seven hundred sixty-five".