140854685 has 4 divisors (see below), whose sum is σ = 169025628. Its totient is φ = 112683744.

The previous prime is 140854631. The next prime is 140854687. The reversal of 140854685 is 586458041.

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 32569849 + 108284836 = 5707^2 + 10406^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-140854685 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (140854687) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 14085464 + ... + 14085473.

It is an arithmetic number, because the mean of its divisors is an integer number (42256407).

Almost surely, 2^140854685 is an apocalyptic number.

It is an amenable number.

140854685 is a deficient number, since it is larger than the sum of its proper divisors (28170943).

140854685 is an equidigital number, since it uses as much as digits as its factorization.

140854685 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 28170942.

The product of its (nonzero) digits is 153600, while the sum is 41.

The square root of 140854685 is about 11868.2216443745. The cubic root of 140854685 is about 520.3039212003.

The spelling of 140854685 in words is "one hundred forty million, eight hundred fifty-four thousand, six hundred eighty-five".