140102085 has 16 divisors (see below), whose sum is σ = 233910144. Its totient is φ = 71472192.

The previous prime is 140102077. The next prime is 140102087. The reversal of 140102085 is 580201041.

It is not a de Polignac number, because 140102085 - 2³ = 140102077 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (140102087) 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 15 ways as a sum of consecutive naturals, for example, 202702 + ... + 203391.

It is an arithmetic number, because the mean of its divisors is an integer number (14619384).

Almost surely, 2^140102085 is an apocalyptic number.

140102085 is a gapful number since it is divisible by the number (15) formed by its first and last digit.

It is an amenable number.

140102085 is a deficient number, since it is larger than the sum of its proper divisors (93808059).

140102085 is a wasteful number, since it uses less digits than its factorization.

140102085 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 406124.

The product of its (nonzero) digits is 320, while the sum is 21.

The square root of 140102085 is about 11836.4726586936. The cubic root of 140102085 is about 519.3755880357.

The spelling of 140102085 in words is "one hundred forty million, one hundred two thousand, eighty-five".