138582763 has 8 divisors (see below), whose sum is σ = 152110656. Its totient is φ = 125209800.

The previous prime is 138582739. The next prime is 138582767. The reversal of 138582763 is 367285831.

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 138582763 - 2¹³ = 138574571 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (138582767) 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 7 ways as a sum of consecutive naturals, for example, 36853 + ... + 40438.

It is an arithmetic number, because the mean of its divisors is an integer number (19013832).

Almost surely, 2^138582763 is an apocalyptic number.

138582763 is a deficient number, since it is larger than the sum of its proper divisors (13527893).

138582763 is a wasteful number, since it uses less digits than its factorization.

138582763 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 77465.

The product of its digits is 241920, while the sum is 43.

The square root of 138582763 is about 11772.1180337270. The cubic root of 138582763 is about 517.4913227170.

It can be divided in two parts, 1385 and 82763, that added together give a palindrome (84148).

The spelling of 138582763 in words is "one hundred thirty-eight million, five hundred eighty-two thousand, seven hundred sixty-three".