1440134699 has 2 divisors, whose sum is σ = 1440134700. Its totient is φ = 1440134698.

The previous prime is 1440134639. The next prime is 1440134737. The reversal of 1440134699 is 9964310441.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 1440134699 - 2¹² = 1440130603 is a prime.

It is not a weakly prime, because it can be changed into another prime (1440134639) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 720067349 + 720067350.

It is an arithmetic number, because the mean of its divisors is an integer number (720067350).

Almost surely, 2^1440134699 is an apocalyptic number.

1440134699 is a deficient number, since it is larger than the sum of its proper divisors (1).

1440134699 is an equidigital number, since it uses as much as digits as its factorization.

1440134699 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 93312, while the sum is 41.

The square root of 1440134699 is about 37949.1066956786. The cubic root of 1440134699 is about 1129.2784437294.

The spelling of 1440134699 in words is "one billion, four hundred forty million, one hundred thirty-four thousand, six hundred ninety-nine".