140859265 has 4 divisors (see below), whose sum is σ = 169031124. Its totient is φ = 112687408.

The previous prime is 140859247. The next prime is 140859343. The reversal of 140859265 is 562958041.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 562958041 = 83 ⋅6782627.

It can be written as a sum of positive squares in 2 ways, for example, as 40398736 + 100460529 = 6356^2 + 10023^2 .

It is a cyclic number.

It is not a de Polignac number, because 140859265 - 2⁵ = 140859233 is a prime.

It is a Smith number, since the sum of its digits (40) coincides with the sum of the digits of its prime factors. Since it is squarefree, it is also a hoax number.

It is a Duffinian 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, 14085922 + ... + 14085931.

It is an arithmetic number, because the mean of its divisors is an integer number (42257781).

Almost surely, 2^140859265 is an apocalyptic number.

It is an amenable number.

140859265 is a deficient number, since it is larger than the sum of its proper divisors (28171859).

140859265 is an equidigital number, since it uses as much as digits as its factorization.

140859265 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 28171858.

The product of its (nonzero) digits is 86400, while the sum is 40.

The square root of 140859265 is about 11868.4145950502. The cubic root of 140859265 is about 520.3095605019.

The spelling of 140859265 in words is "one hundred forty million, eight hundred fifty-nine thousand, two hundred sixty-five".