140138085 has 8 divisors (see below), whose sum is σ = 224220960. Its totient is φ = 74740304.

The previous prime is 140138077. The next prime is 140138093. The reversal of 140138085 is 580831041.

It is an interprime number because it is at equal distance from previous prime (140138077) and next prime (140138093).

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 140138085 - 2³ = 140138077 is a prime.

It is a congruent number.

It is an unprimeable number.

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 7 ways as a sum of consecutive naturals, for example, 4671255 + ... + 4671284.

It is an arithmetic number, because the mean of its divisors is an integer number (28027620).

Almost surely, 2^140138085 is an apocalyptic number.

140138085 is a gapful number since it is divisible by the number (15) formed by its first and last digit.

It is an amenable number.

140138085 is a deficient number, since it is larger than the sum of its proper divisors (84082875).

140138085 is an equidigital number, since it uses as much as digits as its factorization.

140138085 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 9342547.

The product of its (nonzero) digits is 3840, while the sum is 30.

The square root of 140138085 is about 11837.9932843367. The cubic root of 140138085 is about 519.4200696957.

The spelling of 140138085 in words is "one hundred forty million, one hundred thirty-eight thousand, eighty-five".