138557301 has 4 divisors (see below), whose sum is σ = 184743072. Its totient is φ = 92371532.

The previous prime is 138557297. The next prime is 138557303. The reversal of 138557301 is 103755831.

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: 103755831 = 3 ⋅34585277.

It is a cyclic number.

It is not a de Polignac number, because 138557301 - 2² = 138557297 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (138557303) 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, 23092881 + ... + 23092886.

It is an arithmetic number, because the mean of its divisors is an integer number (46185768).

Almost surely, 2^138557301 is an apocalyptic number.

It is an amenable number.

138557301 is a deficient number, since it is larger than the sum of its proper divisors (46185771).

138557301 is an equidigital number, since it uses as much as digits as its factorization.

138557301 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 46185770.

The product of its (nonzero) digits is 12600, while the sum is 33.

The square root of 138557301 is about 11771.0365303995. The cubic root of 138557301 is about 517.4596276470.

The spelling of 138557301 in words is "one hundred thirty-eight million, five hundred fifty-seven thousand, three hundred one".