764703145 has 4 divisors (see below), whose sum is σ = 917643780. Its totient is φ = 611762512.

The previous prime is 764703143. The next prime is 764703151. The reversal of 764703145 is 541307467.

764703145 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 541307467 = 821 ⋅659327.

It can be written as a sum of positive squares in 2 ways, for example, as 378030249 + 386672896 = 19443^2 + 19664^2 .

It is a cyclic number.

It is not a de Polignac number, because 764703145 - 2¹ = 764703143 is a prime.

It is not an unprimeable number, because it can be changed into a prime (764703143) 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, 76470310 + ... + 76470319.

It is an arithmetic number, because the mean of its divisors is an integer number (229410945).

Almost surely, 2^764703145 is an apocalyptic number.

It is an amenable number.

764703145 is a deficient number, since it is larger than the sum of its proper divisors (152940635).

764703145 is a wasteful number, since it uses less digits than its factorization.

764703145 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 152940634.

The product of its (nonzero) digits is 70560, while the sum is 37.

The square root of 764703145 is about 27653.2664435867. The cubic root of 764703145 is about 914.4591127769.

The spelling of 764703145 in words is "seven hundred sixty-four million, seven hundred three thousand, one hundred forty-five".