9138228319 has 4 divisors (see below), whose sum is σ = 9968976360. Its totient is φ = 8307480280.

The previous prime is 9138228299. The next prime is 9138228349.

9138228319 is nontrivially palindromic in base 10.

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

It is not a de Polignac number, because 9138228319 - 2⁵ = 9138228287 is a prime.

It is a super-2 number, since 2×9138228319² (a number of 21 digits) contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (9138228349) 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, 415374004 + ... + 415374025.

It is an arithmetic number, because the mean of its divisors is an integer number (2492244090).

Almost surely, 2^9138228319 is an apocalyptic number.

9138228319 is a deficient number, since it is larger than the sum of its proper divisors (830748041).

9138228319 is a wasteful number, since it uses less digits than its factorization.

9138228319 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 830748040.

The product of its digits is 186624, while the sum is 46.

The square root of 9138228319 is about 95594.0809830818. The cubic root of 9138228319 is about 2090.6788938641.

The spelling of 9138228319 in words is "nine billion, one hundred thirty-eight million, two hundred twenty-eight thousand, three hundred nineteen".