138182533 has 2 divisors, whose sum is σ = 138182534. Its totient is φ = 138182532.

The previous prime is 138182483. The next prime is 138182591. The reversal of 138182533 is 335281831.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 109474369 + 28708164 = 10463^2 + 5358^2 .

It is an emirp because it is prime and its reverse (335281831) is a distict prime.

It is a cyclic number.

It is not a de Polignac number, because 138182533 - 2¹³ = 138174341 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (138182333) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 69091266 + 69091267.

It is an arithmetic number, because the mean of its divisors is an integer number (69091267).

Almost surely, 2^138182533 is an apocalyptic number.

It is an amenable number.

138182533 is a deficient number, since it is larger than the sum of its proper divisors (1).

138182533 is an equidigital number, since it uses as much as digits as its factorization.

138182533 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 17280, while the sum is 34.

The square root of 138182533 is about 11755.1066775253. The cubic root of 138182533 is about 516.9926670091.

The spelling of 138182533 in words is "one hundred thirty-eight million, one hundred eighty-two thousand, five hundred thirty-three".