1459640813 has 2 divisors, whose sum is σ = 1459640814. Its totient is φ = 1459640812.

The previous prime is 1459640779. The next prime is 1459640837. The reversal of 1459640813 is 3180469541.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 1153145764 + 306495049 = 33958^2 + 17507^2 .

It is a cyclic number.

It is not a de Polignac number, because 1459640813 - 2²⁸ = 1191205357 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (1459640863) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 729820406 + 729820407.

It is an arithmetic number, because the mean of its divisors is an integer number (729820407).

Almost surely, 2^1459640813 is an apocalyptic number.

It is an amenable number.

1459640813 is a deficient number, since it is larger than the sum of its proper divisors (1).

1459640813 is an equidigital number, since it uses as much as digits as its factorization.

1459640813 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 103680, while the sum is 41.

The square root of 1459640813 is about 38205.2458832554. The cubic root of 1459640813 is about 1134.3541547450.

The spelling of 1459640813 in words is "one billion, four hundred fifty-nine million, six hundred forty thousand, eight hundred thirteen".