764145 has 12 divisors (see below), whose sum is σ = 1324596. Its totient is φ = 407520.

The previous prime is 764143. The next prime is 764149. The reversal of 764145 is 541467.

It can be written as a sum of positive squares in 2 ways, for example, as 567009 + 197136 = 753^2 + 444^2 .

It is not a de Polignac number, because 764145 - 2¹ = 764143 is a prime.

It is a Curzon number.

It is not an unprimeable number, because it can be changed into a prime (764143) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 8446 + ... + 8535.

It is an arithmetic number, because the mean of its divisors is an integer number (110383).

2⁷⁶⁴¹⁴⁵ is an apocalyptic number.

It is an amenable number.

764145 is a deficient number, since it is larger than the sum of its proper divisors (560451).

764145 is a wasteful number, since it uses less digits than its factorization.

764145 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 16992 (or 16989 counting only the distinct ones).

The product of its digits is 3360, while the sum is 27.

The square root of 764145 is about 874.1538766144. The cubic root of 764145 is about 91.4236575438.

It can be divided in two parts, 764 and 145, that added together give a palindrome (909).

The spelling of 764145 in words is "seven hundred sixty-four thousand, one hundred forty-five".