138741433 has 2 divisors, whose sum is σ = 138741434. Its totient is φ = 138741432.

The previous prime is 138741397. The next prime is 138741467. The reversal of 138741433 is 334147831.

It is an a-pointer prime, because the next prime (138741467) can be obtained adding 138741433 to its sum of digits (34).

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 94225849 + 44515584 = 9707^2 + 6672^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-138741433 is a prime.

It is not a weakly prime, because it can be changed into another prime (138744433) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a good prime.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 69370716 + 69370717.

It is an arithmetic number, because the mean of its divisors is an integer number (69370717).

Almost surely, 2^138741433 is an apocalyptic number.

It is an amenable number.

138741433 is a deficient number, since it is larger than the sum of its proper divisors (1).

138741433 is an equidigital number, since it uses as much as digits as its factorization.

138741433 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 24192, while the sum is 34.

The square root of 138741433 is about 11778.8553348787. The cubic root of 138741433 is about 517.6887475361.

The spelling of 138741433 in words is "one hundred thirty-eight million, seven hundred forty-one thousand, four hundred thirty-three".