1138348529 has 2 divisors, whose sum is σ = 1138348530. Its totient is φ = 1138348528.

The previous prime is 1138348483. The next prime is 1138348567. The reversal of 1138348529 is 9258438311.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 655360000 + 482988529 = 25600^2 + 21977^2 .

It is a cyclic number.

It is not a de Polignac number, because 1138348529 - 2¹² = 1138344433 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 1138348529.

It is not a weakly prime, because it can be changed into another prime (1138348429) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 569174264 + 569174265.

It is an arithmetic number, because the mean of its divisors is an integer number (569174265).

Almost surely, 2^1138348529 is an apocalyptic number.

It is an amenable number.

1138348529 is a deficient number, since it is larger than the sum of its proper divisors (1).

1138348529 is an equidigital number, since it uses as much as digits as its factorization.

1138348529 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 207360, while the sum is 44.

The square root of 1138348529 is about 33739.4209938464. The cubic root of 1138348529 is about 1044.1392388409.

The spelling of 1138348529 in words is "one billion, one hundred thirty-eight million, three hundred forty-eight thousand, five hundred twenty-nine".