138192529 has 8 divisors (see below), whose sum is σ = 145656000. Its totient is φ = 130748112.

The previous prime is 138192517. The next prime is 138192547. The reversal of 138192529 is 925291831.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 138192529 - 2¹⁵ = 138159761 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 138192491 and 138192500.

It is not an unprimeable number, because it can be changed into a prime (138192589) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 11607 + ... + 20275.

It is an arithmetic number, because the mean of its divisors is an integer number (18207000).

Almost surely, 2^138192529 is an apocalyptic number.

138192529 is a gapful number since it is divisible by the number (19) formed by its first and last digit.

It is an amenable number.

138192529 is a deficient number, since it is larger than the sum of its proper divisors (7463471).

138192529 is an equidigital number, since it uses as much as digits as its factorization.

138192529 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 9527.

The product of its digits is 38880, while the sum is 40.

The square root of 138192529 is about 11755.5318467520. The cubic root of 138192529 is about 517.0051329699.

The spelling of 138192529 in words is "one hundred thirty-eight million, one hundred ninety-two thousand, five hundred twenty-nine".