140585245 has 4 divisors (see below), whose sum is σ = 168702300. Its totient is φ = 112468192.

The previous prime is 140585239. The next prime is 140585261. The reversal of 140585245 is 542585041.

It is a happy number.

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 19166884 + 121418361 = 4378^2 + 11019^2 .

It is a cyclic number.

It is not a de Polignac number, because 140585245 - 2⁹ = 140584733 is a prime.

It is a super-2 number, since 2×140585245² = 39528422223420050, which contains 22 as substring.

It is a self number, because there is not a number n which added to its sum of digits gives 140585245.

It is a congruent number.

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 3 ways as a sum of consecutive naturals, for example, 14058520 + ... + 14058529.

It is an arithmetic number, because the mean of its divisors is an integer number (42175575).

Almost surely, 2^140585245 is an apocalyptic number.

It is an amenable number.

140585245 is a deficient number, since it is larger than the sum of its proper divisors (28117055).

140585245 is an equidigital number, since it uses as much as digits as its factorization.

140585245 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 28117054.

The product of its (nonzero) digits is 32000, while the sum is 34.

The square root of 140585245 is about 11856.8648891686. The cubic root of 140585245 is about 519.9719474512.

The spelling of 140585245 in words is "one hundred forty million, five hundred eighty-five thousand, two hundred forty-five".