140387 has 4 divisors (see below), whose sum is σ = 151200. Its totient is φ = 129576.

The previous prime is 140381. The next prime is 140401. The reversal of 140387 is 783041.

It is a happy number.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 783041 = 7 ⋅111863.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-140387 is a prime.

It is a Duffinian number.

It is an inconsummate number, since it does not exist a number n which divided by its sum of digits gives 140387.

It is not an unprimeable number, because it can be changed into a prime (140381) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (7) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 5387 + ... + 5412.

It is an arithmetic number, because the mean of its divisors is an integer number (37800).

2¹⁴⁰³⁸⁷ is an apocalyptic number.

140387 is a deficient number, since it is larger than the sum of its proper divisors (10813).

140387 is a wasteful number, since it uses less digits than its factorization.

140387 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 10812.

The product of its (nonzero) digits is 672, while the sum is 23.

The square root of 140387 is about 374.6825322857. The cubic root of 140387 is about 51.9727421244.

The spelling of 140387 in words is "one hundred forty thousand, three hundred eighty-seven".