140061985 has 8 divisors (see below), whose sum is σ = 192085056. Its totient is φ = 96042480.

The previous prime is 140061979. The next prime is 140061991. The reversal of 140061985 is 589160041.

It is an interprime number because it is at equal distance from previous prime (140061979) and next prime (140061991).

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

It is not a de Polignac number, because 140061985 - 2⁵ = 140061953 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 140061985.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 2000851 + ... + 2000920.

It is an arithmetic number, because the mean of its divisors is an integer number (24010632).

Almost surely, 2^140061985 is an apocalyptic number.

It is an amenable number.

140061985 is a deficient number, since it is larger than the sum of its proper divisors (52023071).

140061985 is an equidigital number, since it uses as much as digits as its factorization.

140061985 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4001783.

The product of its (nonzero) digits is 8640, while the sum is 34.

The square root of 140061985 is about 11834.7786206587. The cubic root of 140061985 is about 519.3260314370.

The spelling of 140061985 in words is "one hundred forty million, sixty-one thousand, nine hundred eighty-five".