140743265 has 16 divisors (see below), whose sum is σ = 183934800. Its totient is φ = 102761472.

The previous prime is 140743243. The next prime is 140743271. The reversal of 140743265 is 562347041.

It can be written as a sum of positive squares in 8 ways, for example, as 9709456 + 131033809 = 3116^2 + 11447^2 .

It is a cyclic number.

It is not a de Polignac number, because 140743265 - 2¹⁰ = 140742241 is a prime.

It is an unprimeable number.

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 15 ways as a sum of consecutive naturals, for example, 6380 + ... + 17949.

It is an arithmetic number, because the mean of its divisors is an integer number (11495925).

Almost surely, 2^140743265 is an apocalyptic number.

It is an amenable number.

140743265 is a deficient number, since it is larger than the sum of its proper divisors (43191535).

140743265 is a wasteful number, since it uses less digits than its factorization.

140743265 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 24436.

The product of its (nonzero) digits is 20160, while the sum is 32.

The square root of 140743265 is about 11863.5266679011. The cubic root of 140743265 is about 520.1666933533.

The spelling of 140743265 in words is "one hundred forty million, seven hundred forty-three thousand, two hundred sixty-five".