140564345 has 4 divisors (see below), whose sum is σ = 168677220. Its totient is φ = 112451472.

The previous prime is 140564327. The next prime is 140564371. The reversal of 140564345 is 543465041.

140564345 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.

It can be written as a sum of positive squares in 2 ways, for example, as 19035769 + 121528576 = 4363^2 + 11024^2 .

It is a cyclic number.

It is not a de Polignac number, because 140564345 - 2⁸ = 140564089 is a prime.

It is a Curzon number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 14056430 + ... + 14056439.

It is an arithmetic number, because the mean of its divisors is an integer number (42169305).

Almost surely, 2^140564345 is an apocalyptic number.

It is an amenable number.

140564345 is a deficient number, since it is larger than the sum of its proper divisors (28112875).

140564345 is an equidigital number, since it uses as much as digits as its factorization.

140564345 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 28112874.

The product of its (nonzero) digits is 28800, while the sum is 32.

The square root of 140564345 is about 11855.9835104474. The cubic root of 140564345 is about 519.9461790943.

The spelling of 140564345 in words is "one hundred forty million, five hundred sixty-four thousand, three hundred forty-five".