140141985 has 8 divisors (see below), whose sum is σ = 224227200. Its totient is φ = 74742384.

The previous prime is 140141941. The next prime is 140141987. The reversal of 140141985 is 589141041.

140141985 is nontrivially palindromic in base 2.

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

It is not a de Polignac number, because 140141985 - 2¹⁰ = 140140961 is a prime.

It is not an unprimeable number, because it can be changed into a prime (140141987) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 4671385 + ... + 4671414.

It is an arithmetic number, because the mean of its divisors is an integer number (28028400).

Almost surely, 2^140141985 is an apocalyptic number.

140141985 is a gapful number since it is divisible by the number (15) formed by its first and last digit.

It is an amenable number.

140141985 is a deficient number, since it is larger than the sum of its proper divisors (84085215).

140141985 is an equidigital number, since it uses as much as digits as its factorization.

140141985 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 9342807.

The product of its (nonzero) digits is 5760, while the sum is 33.

The square root of 140141985 is about 11838.1580070550. The cubic root of 140141985 is about 519.4248880848.

The spelling of 140141985 in words is "one hundred forty million, one hundred forty-one thousand, nine hundred eighty-five".