140987 has 8 divisors (see below), whose sum is σ = 175872. Its totient is φ = 109800.

The previous prime is 140983. The next prime is 140989. The reversal of 140987 is 789041.

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

It is a cyclic number.

It is not a de Polignac number, because 140987 - 2² = 140983 is a prime.

It is a Duffinian number.

It is a plaindrome in base 16.

It is a congruent number.

It is an inconsummate number, since it does not exist a number n which divided by its sum of digits gives 140987.

It is not an unprimeable number, because it can be changed into a prime (140983) 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, 839 + ... + 992.

It is an arithmetic number, because the mean of its divisors is an integer number (21984).

2¹⁴⁰⁹⁸⁷ is an apocalyptic number.

140987 is a deficient number, since it is larger than the sum of its proper divisors (34885).

140987 is a wasteful number, since it uses less digits than its factorization.

140987 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1849.

The product of its (nonzero) digits is 2016, while the sum is 29.

The square root of 140987 is about 375.4823564430. The cubic root of 140987 is about 52.0466789923.

The spelling of 140987 in words is "one hundred forty thousand, nine hundred eighty-seven".