138192533 has 16 divisors (see below), whose sum is σ = 146779776. Its totient is φ = 129845760.

The previous prime is 138192517. The next prime is 138192547. The reversal of 138192533 is 335291831.

It is a happy number.

It is a cyclic number.

It is not a de Polignac number, because 138192533 - 2⁴ = 138192517 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 138192493 and 138192502.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (138192503) 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 in 15 ways as a sum of consecutive naturals, for example, 573293 + ... + 573533.

It is an arithmetic number, because the mean of its divisors is an integer number (9173736).

Almost surely, 2^138192533 is an apocalyptic number.

It is an amenable number.

138192533 is a deficient number, since it is larger than the sum of its proper divisors (8587243).

138192533 is a wasteful number, since it uses less digits than its factorization.

138192533 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 604.

The product of its digits is 19440, while the sum is 35.

The square root of 138192533 is about 11755.5320168846. The cubic root of 138192533 is about 517.0051379581.

The spelling of 138192533 in words is "one hundred thirty-eight million, one hundred ninety-two thousand, five hundred thirty-three".