1388316223 has 6 divisors (see below), whose sum is σ = 1586759784. Its totient is φ = 1189900836.

The previous prime is 1388316199. The next prime is 1388316233. The reversal of 1388316223 is 3226138831.

It is not a de Polignac number, because 1388316223 - 2⁵ = 1388316191 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1388316233) 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 5 ways as a sum of consecutive naturals, for example, 91540 + ... + 105622.

It is an arithmetic number, because the mean of its divisors is an integer number (264459964).

Almost surely, 2^1388316223 is an apocalyptic number.

1388316223 is a deficient number, since it is larger than the sum of its proper divisors (198443561).

1388316223 is an frugal number, since it uses more digits than its factorization.

1388316223 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 28173 (or 14090 counting only the distinct ones).

The product of its digits is 41472, while the sum is 37.

The square root of 1388316223 is about 37260.1157137226. The cubic root of 1388316223 is about 1115.5682178236.

The spelling of 1388316223 in words is "one billion, three hundred eighty-eight million, three hundred sixteen thousand, two hundred twenty-three".