1138348171 has 4 divisors (see below), whose sum is σ = 1139074344. Its totient is φ = 1137622000.

The previous prime is 1138348163. The next prime is 1138348201. The reversal of 1138348171 is 1718438311.

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 1138348171 - 2³ = 1138348163 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 1138348171.

It is not an unprimeable number, because it can be changed into a prime (1138348111) 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, 360730 + ... + 363871.

It is an arithmetic number, because the mean of its divisors is an integer number (284768586).

Almost surely, 2^1138348171 is an apocalyptic number.

1138348171 is a deficient number, since it is larger than the sum of its proper divisors (726173).

1138348171 is an equidigital number, since it uses as much as digits as its factorization.

1138348171 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 726172.

The product of its digits is 16128, while the sum is 37.

The square root of 1138348171 is about 33739.4156884793. The cubic root of 1138348171 is about 1044.1391293835.

The spelling of 1138348171 in words is "one billion, one hundred thirty-eight million, three hundred forty-eight thousand, one hundred seventy-one".