764161253 has 12 divisors (see below), whose sum is σ = 797525964. Its totient is φ = 732096000.

The previous prime is 764161249. The next prime is 764161273. The reversal of 764161253 is 352161467.

764161253 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It can be written as a sum of positive squares in 2 ways, for example, as 372991969 + 391169284 = 19313^2 + 19778^2 .

It is not a de Polignac number, because 764161253 - 2² = 764161249 is a prime.

It is a Smith number, since the sum of its digits (35) coincides with the sum of the digits of its prime factors.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (764161273) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 93125 + ... + 100997.

It is an arithmetic number, because the mean of its divisors is an integer number (66460497).

Almost surely, 2^764161253 is an apocalyptic number.

It is an amenable number.

764161253 is a deficient number, since it is larger than the sum of its proper divisors (33364711).

764161253 is a wasteful number, since it uses less digits than its factorization.

764161253 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 8036 (or 8005 counting only the distinct ones).

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

The square root of 764161253 is about 27643.4667326658. The cubic root of 764161253 is about 914.2430571837.

The spelling of 764161253 in words is "seven hundred sixty-four million, one hundred sixty-one thousand, two hundred fifty-three".