1929136513 has 2 divisors, whose sum is σ = 1929136514. Its totient is φ = 1929136512.

The previous prime is 1929136501. The next prime is 1929136537. The reversal of 1929136513 is 3156319291.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 1358069904 + 571066609 = 36852^2 + 23897^2 .

It is an emirp because it is prime and its reverse (3156319291) is a distict prime.

It is a cyclic number.

It is not a de Polignac number, because 1929136513 - 2¹³ = 1929128321 is a prime.

It is not a weakly prime, because it can be changed into another prime (1929136613) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 964568256 + 964568257.

It is an arithmetic number, because the mean of its divisors is an integer number (964568257).

Almost surely, 2^1929136513 is an apocalyptic number.

It is an amenable number.

1929136513 is a deficient number, since it is larger than the sum of its proper divisors (1).

1929136513 is an equidigital number, since it uses as much as digits as its factorization.

1929136513 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 43740, while the sum is 40.

The square root of 1929136513 is about 43921.9365807110. The cubic root of 1929136513 is about 1244.8613605614.

The spelling of 1929136513 in words is "one billion, nine hundred twenty-nine million, one hundred thirty-six thousand, five hundred thirteen".