138051941 has 4 divisors (see below), whose sum is σ = 138671232. Its totient is φ = 137432652.

The previous prime is 138051889. The next prime is 138051983. The reversal of 138051941 is 149150831.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4, and also an emirpimes, since its reverse is a distinct semiprime: 149150831 = 107 ⋅1393933.

It is a cyclic number.

It is not a de Polignac number, because 138051941 - 2⁶ = 138051877 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 138051898 and 138051907.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (138051041) 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 3 ways as a sum of consecutive naturals, for example, 309311 + ... + 309756.

It is an arithmetic number, because the mean of its divisors is an integer number (34667808).

Almost surely, 2^138051941 is an apocalyptic number.

It is an amenable number.

138051941 is a deficient number, since it is larger than the sum of its proper divisors (619291).

138051941 is an equidigital number, since it uses as much as digits as its factorization.

138051941 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 619290.

The product of its (nonzero) digits is 4320, while the sum is 32.

The square root of 138051941 is about 11749.5506722598. The cubic root of 138051941 is about 516.8297511304.

The spelling of 138051941 in words is "one hundred thirty-eight million, fifty-one thousand, nine hundred forty-one".