140738385 has 16 divisors (see below), whose sum is σ = 225912960. Its totient is φ = 74816640.

The previous prime is 140738383. The next prime is 140738431. The reversal of 140738385 is 583837041.

It is not a de Polignac number, because 140738385 - 2¹ = 140738383 is a prime.

It is a Curzon number.

It is not an unprimeable number, because it can be changed into a prime (140738383) 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, 10420 + ... + 19749.

It is an arithmetic number, because the mean of its divisors is an integer number (14119560).

Almost surely, 2^140738385 is an apocalyptic number.

140738385 is a gapful number since it is divisible by the number (15) formed by its first and last digit.

It is an amenable number.

140738385 is a deficient number, since it is larger than the sum of its proper divisors (85174575).

140738385 is a wasteful number, since it uses less digits than its factorization.

140738385 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 30488.

The product of its (nonzero) digits is 80640, while the sum is 39.

The square root of 140738385 is about 11863.3209937184. The cubic root of 140738385 is about 520.1606813597.

The spelling of 140738385 in words is "one hundred forty million, seven hundred thirty-eight thousand, three hundred eighty-five".