140851 has 4 divisors (see below), whose sum is σ = 142632. Its totient is φ = 139072.

The previous prime is 140839. The next prime is 140863. The reversal of 140851 is 158041.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 158041 = 13 ⋅12157.

It is an interprime number because it is at equal distance from previous prime (140839) and next prime (140863).

It is a cyclic number.

It is not a de Polignac number, because 140851 - 2⁹ = 140339 is a prime.

It is a Duffinian number.

140851 is a lucky number.

It is not an unprimeable number, because it can be changed into a prime (140831) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 766 + ... + 931.

It is an arithmetic number, because the mean of its divisors is an integer number (35658).

2¹⁴⁰⁸⁵¹ is an apocalyptic number.

140851 is a deficient number, since it is larger than the sum of its proper divisors (1781).

140851 is an equidigital number, since it uses as much as digits as its factorization.

140851 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1780.

The product of its (nonzero) digits is 160, while the sum is 19.

The square root of 140851 is about 375.3012123615. The cubic root of 140851 is about 52.0299383813.

Adding to 140851 its reverse (158041), we get a palindrome (298892).

The spelling of 140851 in words is "one hundred forty thousand, eight hundred fifty-one".