140817 has 8 divisors (see below), whose sum is σ = 190624. Its totient is φ = 92448.

The previous prime is 140813. The next prime is 140827. The reversal of 140817 is 718041.

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

It is not a de Polignac number, because 140817 - 2² = 140813 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 140793 and 140802.

It is not an unprimeable number, because it can be changed into a prime (140813) 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, 103 + ... + 540.

It is an arithmetic number, because the mean of its divisors is an integer number (23828).

2¹⁴⁰⁸¹⁷ is an apocalyptic number.

It is an amenable number.

140817 is a deficient number, since it is larger than the sum of its proper divisors (49807).

140817 is an equidigital number, since it uses as much as digits as its factorization.

140817 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 719.

The product of its (nonzero) digits is 224, while the sum is 21.

The square root of 140817 is about 375.2559126783. The cubic root of 140817 is about 52.0257515450.

Adding to 140817 its reverse (718041), we get a palindrome (858858).

The spelling of 140817 in words is "one hundred forty thousand, eight hundred seventeen".