140903685 has 32 divisors (see below), whose sum is σ = 269767680. Its totient is φ = 69367104.

The previous prime is 140903671. The next prime is 140903713. The reversal of 140903685 is 586309041.

It is not a de Polignac number, because 140903685 - 2⁴ = 140903669 is a prime.

It is a Curzon number.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 38389 + ... + 41898.

It is an arithmetic number, because the mean of its divisors is an integer number (8430240).

Almost surely, 2^140903685 is an apocalyptic number.

140903685 is a gapful number since it is divisible by the number (15) formed by its first and last digit.

It is an amenable number.

140903685 is a deficient number, since it is larger than the sum of its proper divisors (128863995).

140903685 is a wasteful number, since it uses less digits than its factorization.

140903685 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 80314 (or 80308 counting only the distinct ones).

The product of its (nonzero) digits is 25920, while the sum is 36.

The square root of 140903685 is about 11870.2858011086. The cubic root of 140903685 is about 520.3642479982.

The spelling of 140903685 in words is "one hundred forty million, nine hundred three thousand, six hundred eighty-five".