240131 has 2 divisors, whose sum is σ = 240132. Its totient is φ = 240130.

The previous prime is 240113. The next prime is 240139. The reversal of 240131 is 131042.

It is a happy number.

240131 is nontrivially palindromic in base 12.

Together with previous prime (240113) it forms an Ormiston pair, because they use the same digits, order apart.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 240131 - 2¹⁴ = 223747 is a prime.

It is a super-2 number, since 2×240131² = 115325794322, which contains 22 as substring.

It is a Chen prime.

240131 is an undulating number in base 12.

It is not a weakly prime, because it can be changed into another prime (240139) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 120065 + 120066.

It is an arithmetic number, because the mean of its divisors is an integer number (120066).

2²⁴⁰¹³¹ is an apocalyptic number.

240131 is a deficient number, since it is larger than the sum of its proper divisors (1).

240131 is an equidigital number, since it uses as much as digits as its factorization.

240131 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 24, while the sum is 11.

The square root of 240131 is about 490.0316316321. The cubic root of 240131 is about 62.1559549363.

Adding to 240131 its reverse (131042), we get a palindrome (371173).

The spelling of 240131 in words is "two hundred forty thousand, one hundred thirty-one".