138053577 has 4 divisors (see below), whose sum is σ = 184071440. Its totient is φ = 92035716.

The previous prime is 138053561. The next prime is 138053599. The reversal of 138053577 is 775350831.

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: 775350831 = 3 ⋅258450277.

It is not a de Polignac number, because 138053577 - 2⁴ = 138053561 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (138053537) 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 3 ways as a sum of consecutive naturals, for example, 23008927 + ... + 23008932.

It is an arithmetic number, because the mean of its divisors is an integer number (46017860).

Almost surely, 2^138053577 is an apocalyptic number.

It is an amenable number.

138053577 is a deficient number, since it is larger than the sum of its proper divisors (46017863).

138053577 is an equidigital number, since it uses as much as digits as its factorization.

138053577 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 46017862.

The product of its (nonzero) digits is 88200, while the sum is 39.

The square root of 138053577 is about 11749.6202917371. The cubic root of 138053577 is about 516.8317927053.

The spelling of 138053577 in words is "one hundred thirty-eight million, fifty-three thousand, five hundred seventy-seven".