138047563 has 4 divisors (see below), whose sum is σ = 140652288. Its totient is φ = 135442840.

The previous prime is 138047549. The next prime is 138047593. The reversal of 138047563 is 365740831.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 138047563 - 2⁹ = 138047051 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (138047543) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 1302283 + ... + 1302388.

It is an arithmetic number, because the mean of its divisors is an integer number (35163072).

Almost surely, 2^138047563 is an apocalyptic number.

138047563 is a deficient number, since it is larger than the sum of its proper divisors (2604725).

138047563 is an equidigital number, since it uses as much as digits as its factorization.

138047563 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2604724.

The product of its (nonzero) digits is 60480, while the sum is 37.

The square root of 138047563 is about 11749.3643657859. The cubic root of 138047563 is about 516.8242877168.

The spelling of 138047563 in words is "one hundred thirty-eight million, forty-seven thousand, five hundred sixty-three".