138995041 has 8 divisors (see below), whose sum is σ = 143692544. Its totient is φ = 134310960.

The previous prime is 138994997. The next prime is 138995071. The reversal of 138995041 is 140599831.

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 138995041 - 2⁹ = 138994529 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 138994985 and 138995003.

It is not an unprimeable number, because it can be changed into a prime (138995071) by changing a digit.

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

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 20506 + ... + 26428.

It is an arithmetic number, because the mean of its divisors is an integer number (17961568).

Almost surely, 2^138995041 is an apocalyptic number.

It is an amenable number.

138995041 is a deficient number, since it is larger than the sum of its proper divisors (4697503).

138995041 is an equidigital number, since it uses as much as digits as its factorization.

138995041 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 6711.

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

The square root of 138995041 is about 11789.6158122307. The cubic root of 138995041 is about 518.0039864434.

The spelling of 138995041 in words is "one hundred thirty-eight million, nine hundred ninety-five thousand, forty-one".