140387085 has 12 divisors (see below), whose sum is σ = 243337692. Its totient is φ = 74873088.

The previous prime is 140387083. The next prime is 140387111. The reversal of 140387085 is 580783041.

It can be written as a sum of positive squares in 2 ways, for example, as 40106889 + 100280196 = 6333^2 + 10014^2 .

It is not a de Polignac number, because 140387085 - 2¹ = 140387083 is a prime.

It is a Smith number, since the sum of its digits (36) coincides with the sum of the digits of its prime factors.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (140387083) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 1559812 + ... + 1559901.

It is an arithmetic number, because the mean of its divisors is an integer number (20278141).

Almost surely, 2^140387085 is an apocalyptic number.

140387085 is a gapful number since it is divisible by the number (15) formed by its first and last digit.

It is an amenable number.

140387085 is a deficient number, since it is larger than the sum of its proper divisors (102950607).

140387085 is a wasteful number, since it uses less digits than its factorization.

140387085 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3119724 (or 3119721 counting only the distinct ones).

The product of its (nonzero) digits is 26880, while the sum is 36.

The square root of 140387085 is about 11848.5056019736. The cubic root of 140387085 is about 519.7275261375.

It can be divided in two parts, 1403 and 87085, that added together give a palindrome (88488).

The spelling of 140387085 in words is "one hundred forty million, three hundred eighty-seven thousand, eighty-five".