440013131 has 2 divisors, whose sum is σ = 440013132. Its totient is φ = 440013130.

The previous prime is 440013113. The next prime is 440013137. The reversal of 440013131 is 131310044.

Together with previous prime (440013113) 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 440013131 - 2¹⁰ = 440012107 is a prime.

It is a super-2 number, since 2×440013131² = 387223110904846322, which contains 22 as substring.

It is a Sophie Germain prime.

It is not a weakly prime, because it can be changed into another prime (440013137) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 220006565 + 220006566.

It is an arithmetic number, because the mean of its divisors is an integer number (220006566).

Almost surely, 2^440013131 is an apocalyptic number.

440013131 is a deficient number, since it is larger than the sum of its proper divisors (1).

440013131 is an equidigital number, since it uses as much as digits as its factorization.

440013131 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 144, while the sum is 17.

The square root of 440013131 is about 20976.4899589993. The cubic root of 440013131 is about 760.5980582238.

Adding to 440013131 its reverse (131310044), we get a palindrome (571323175).

The spelling of 440013131 in words is "four hundred forty million, thirteen thousand, one hundred thirty-one".