138814827 has 4 divisors (see below), whose sum is σ = 185086440. Its totient is φ = 92543216.

The previous prime is 138814801. The next prime is 138814849. The reversal of 138814827 is 728418831.

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 138814827 - 2⁷ = 138814699 is a prime.

It is not an unprimeable number, because it can be changed into a prime (138814127) 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, 23135802 + ... + 23135807.

It is an arithmetic number, because the mean of its divisors is an integer number (46271610).

Almost surely, 2^138814827 is an apocalyptic number.

138814827 is a deficient number, since it is larger than the sum of its proper divisors (46271613).

138814827 is an equidigital number, since it uses as much as digits as its factorization.

138814827 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 46271612.

The product of its digits is 86016, while the sum is 42.

The square root of 138814827 is about 11781.9704209440. The cubic root of 138814827 is about 517.7800169554.

The spelling of 138814827 in words is "one hundred thirty-eight million, eight hundred fourteen thousand, eight hundred twenty-seven".