140131 has 4 divisors (see below), whose sum is σ = 148392. Its totient is φ = 131872.

The previous prime is 140123. The next prime is 140143. The reversal of 140131 is 131041.

It is a happy number.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 140131 - 2³ = 140123 is a prime.

It is a super-2 number, since 2×140131² = 39273394322, which contains 22 as substring.

It is a Duffinian number.

It is a plaindrome in base 7.

It is not an unprimeable number, because it can be changed into a prime (140111) 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, 4105 + ... + 4138.

It is an arithmetic number, because the mean of its divisors is an integer number (37098).

2¹⁴⁰¹³¹ is an apocalyptic number.

140131 is a deficient number, since it is larger than the sum of its proper divisors (8261).

140131 is an equidigital number, since it uses as much as digits as its factorization.

140131 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 8260.

The product of its (nonzero) digits is 12, while the sum is 10.

The square root of 140131 is about 374.3407538594. The cubic root of 140131 is about 51.9411316060.

Adding to 140131 its reverse (131041), we get a palindrome (271172).

The spelling of 140131 in words is "one hundred forty thousand, one hundred thirty-one".