138353029 has 2 divisors, whose sum is σ = 138353030. Its totient is φ = 138353028.

The previous prime is 138353011. The next prime is 138353051. The reversal of 138353029 is 920353831.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 99002500 + 39350529 = 9950^2 + 6273^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-138353029 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 138352985 and 138353003.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (138353009) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 69176514 + 69176515.

It is an arithmetic number, because the mean of its divisors is an integer number (69176515).

Almost surely, 2^138353029 is an apocalyptic number.

It is an amenable number.

138353029 is a deficient number, since it is larger than the sum of its proper divisors (1).

138353029 is an equidigital number, since it uses as much as digits as its factorization.

138353029 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 19440, while the sum is 34.

The square root of 138353029 is about 11762.3564390814. The cubic root of 138353029 is about 517.2052094391.

The spelling of 138353029 in words is "one hundred thirty-eight million, three hundred fifty-three thousand, twenty-nine".