140564265 has 16 divisors (see below), whose sum is σ = 225849600. Its totient is φ = 74652032.

The previous prime is 140564257. The next prime is 140564269. The reversal of 140564265 is 562465041.

It is a cyclic number.

It is not a de Polignac number, because 140564265 - 2³ = 140564257 is a prime.

It is not an unprimeable number, because it can be changed into a prime (140564269) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 16020 + ... + 23189.

It is an arithmetic number, because the mean of its divisors is an integer number (14115600).

Almost surely, 2^140564265 is an apocalyptic number.

140564265 is a gapful number since it is divisible by the number (15) formed by its first and last digit.

It is an amenable number.

140564265 is a deficient number, since it is larger than the sum of its proper divisors (85285335).

140564265 is a wasteful number, since it uses less digits than its factorization.

140564265 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 39456.

The product of its (nonzero) digits is 28800, while the sum is 33.

The square root of 140564265 is about 11855.9801366230. The cubic root of 140564265 is about 519.9460804546.

The spelling of 140564265 in words is "one hundred forty million, five hundred sixty-four thousand, two hundred sixty-five".