138332541 has 8 divisors (see below), whose sum is σ = 185033920. Its totient is φ = 91926432.

The previous prime is 138332533. The next prime is 138332549. The reversal of 138332541 is 145233831.

It is an interprime number because it is at equal distance from previous prime (138332533) and next prime (138332549).

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

It is not a de Polignac number, because 138332541 - 2³ = 138332533 is a prime.

It is a Duffinian number.

It is a Curzon number.

It is a junction number, because it is equal to n+sod(n) for n = 138332499 and 138332508.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (138332549) 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, 72721 + ... + 74598.

It is an arithmetic number, because the mean of its divisors is an integer number (23129240).

Almost surely, 2^138332541 is an apocalyptic number.

It is an amenable number.

138332541 is a deficient number, since it is larger than the sum of its proper divisors (46701379).

138332541 is a wasteful number, since it uses less digits than its factorization.

138332541 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 147635.

The product of its digits is 8640, while the sum is 30.

The square root of 138332541 is about 11761.4854929129. The cubic root of 138332541 is about 517.1796780780.

The spelling of 138332541 in words is "one hundred thirty-eight million, three hundred thirty-two thousand, five hundred forty-one".