138596777 has 8 divisors (see below), whose sum is σ = 151286400. Its totient is φ = 125922160.

The previous prime is 138596747. The next prime is 138596797. The reversal of 138596777 is 777695831.

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 138596777 - 2¹² = 138592681 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (138596707) 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, 25568 + ... + 30510.

It is an arithmetic number, because the mean of its divisors is an integer number (18910800).

Almost surely, 2^138596777 is an apocalyptic number.

It is an amenable number.

138596777 is a deficient number, since it is larger than the sum of its proper divisors (12689623).

138596777 is a wasteful number, since it uses less digits than its factorization.

138596777 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 7503.

The product of its digits is 2222640, while the sum is 53.

The square root of 138596777 is about 11772.7132386719. The cubic root of 138596777 is about 517.5087656726.

The spelling of 138596777 in words is "one hundred thirty-eight million, five hundred ninety-six thousand, seven hundred seventy-seven".