1440000131 has 2 divisors, whose sum is σ = 1440000132. Its totient is φ = 1440000130.

The previous prime is 1440000119. The next prime is 1440000137. The reversal of 1440000131 is 1310000441.

It is a happy number.

It is a strong prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-1440000131 is a prime.

It is a super-2 number, since 2×1440000131² = 4147200754560034322, which contains 22 as substring.

It is not a weakly prime, because it can be changed into another prime (1440000137) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 720000065 + 720000066.

It is an arithmetic number, because the mean of its divisors is an integer number (720000066).

Almost surely, 2^1440000131 is an apocalyptic number.

1440000131 is a deficient number, since it is larger than the sum of its proper divisors (1).

1440000131 is an equidigital number, since it uses as much as digits as its factorization.

1440000131 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 48, while the sum is 14.

The square root of 1440000131 is about 37947.3336480971. Note that the first 3 decimals coincide. The cubic root of 1440000131 is about 1129.2432689005.

Adding to 1440000131 its reverse (1310000441), we get a palindrome (2750000572).

The spelling of 1440000131 in words is "one billion, four hundred forty million, one hundred thirty-one", and thus it is an aban number.