1138504343 has 4 divisors (see below), whose sum is σ = 1138682520. Its totient is φ = 1138326168.

The previous prime is 1138504321. The next prime is 1138504349. The reversal of 1138504343 is 3434058311.

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 1138504343 - 2²⁴ = 1121727127 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 (1138504349) 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, 79133 + ... + 92406.

It is an arithmetic number, because the mean of its divisors is an integer number (284670630).

Almost surely, 2^1138504343 is an apocalyptic number.

1138504343 is a deficient number, since it is larger than the sum of its proper divisors (178177).

1138504343 is an equidigital number, since it uses as much as digits as its factorization.

1138504343 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 178176.

The product of its (nonzero) digits is 17280, while the sum is 32.

The square root of 1138504343 is about 33741.7299941778. The cubic root of 1138504343 is about 1044.1868762984.

The spelling of 1138504343 in words is "one billion, one hundred thirty-eight million, five hundred four thousand, three hundred forty-three".