440131 has 2 divisors, whose sum is σ = 440132. Its totient is φ = 440130.

The previous prime is 440101. The next prime is 440159. The reversal of 440131 is 131044.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 440131 - 2¹⁷ = 309059 is a prime.

It is a super-2 number, since 2×440131² = 387430594322, which contains 22 as substring.

It is an Ulam number.

440131 is a lucky number.

It is not a weakly prime, because it can be changed into another prime (440101) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 220065 + 220066.

It is an arithmetic number, because the mean of its divisors is an integer number (220066).

2⁴⁴⁰¹³¹ is an apocalyptic number.

440131 is a deficient number, since it is larger than the sum of its proper divisors (1).

440131 is an equidigital number, since it uses as much as digits as its factorization.

440131 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 48, while the sum is 13.

The square root of 440131 is about 663.4236956878. The cubic root of 440131 is about 76.0665967507.

Adding to 440131 its reverse (131044), we get a palindrome (571175).

The spelling of 440131 in words is "four hundred forty thousand, one hundred thirty-one".