1440130651 has 2 divisors, whose sum is σ = 1440130652. Its totient is φ = 1440130650.

The previous prime is 1440130649. The next prime is 1440130661. The reversal of 1440130651 is 1560310441.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 1440130651 - 2¹ = 1440130649 is a prime.

Together with 1440130649, it forms a pair of twin primes.

It is not a weakly prime, because it can be changed into another prime (1440130621) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 720065325 + 720065326.

It is an arithmetic number, because the mean of its divisors is an integer number (720065326).

Almost surely, 2^1440130651 is an apocalyptic number.

1440130651 is a deficient number, since it is larger than the sum of its proper divisors (1).

1440130651 is an equidigital number, since it uses as much as digits as its factorization.

1440130651 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 1440, while the sum is 25.

The square root of 1440130651 is about 37949.0533610524. The cubic root of 1440130651 is about 1129.2773856517.

The spelling of 1440130651 in words is "one billion, four hundred forty million, one hundred thirty thousand, six hundred fifty-one".