140289 has 8 divisors (see below), whose sum is σ = 189312. Its totient is φ = 92400.

The previous prime is 140281. The next prime is 140297. The reversal of 140289 is 982041.

It is an interprime number because it is at equal distance from previous prime (140281) and next prime (140297).

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

It is not a de Polignac number, because 140289 - 2³ = 140281 is a prime.

It is not an unprimeable number, because it can be changed into a prime (140281) 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, 72 + ... + 534.

It is an arithmetic number, because the mean of its divisors is an integer number (23664).

It is a Proth number, since it is equal to 137 ⋅ 2¹⁰ + 1 and 137 < 2¹⁰.

2¹⁴⁰²⁸⁹ is an apocalyptic number.

It is an amenable number.

140289 is a deficient number, since it is larger than the sum of its proper divisors (49023).

140289 is a wasteful number, since it uses less digits than its factorization.

140289 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 567.

The product of its (nonzero) digits is 576, while the sum is 24.

The square root of 140289 is about 374.5517320745. The cubic root of 140289 is about 51.9606457662.

The spelling of 140289 in words is "one hundred forty thousand, two hundred eighty-nine".