138283563 has 8 divisors (see below), whose sum is σ = 201139776. Its totient is φ = 83808200.

The previous prime is 138283549. The next prime is 138283573. The reversal of 138283563 is 365382831.

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 138283563 - 2⁴ = 138283547 is a prime.

It is not an unprimeable number, because it can be changed into a prime (138283543) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 2095173 + ... + 2095238.

It is an arithmetic number, because the mean of its divisors is an integer number (25142472).

Almost surely, 2^138283563 is an apocalyptic number.

138283563 is a deficient number, since it is larger than the sum of its proper divisors (62856213).

138283563 is a wasteful number, since it uses less digits than its factorization.

138283563 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4190425.

The product of its digits is 103680, while the sum is 39.

The square root of 138283563 is about 11759.4031736309. The cubic root of 138283563 is about 517.1186333516.

It can be divided in two parts, 13828 and 3563, that added together give a triangular number (17391 = T₁₈₆).

The spelling of 138283563 in words is "one hundred thirty-eight million, two hundred eighty-three thousand, five hundred sixty-three".