1138348511 has 8 divisors (see below), whose sum is σ = 1159672800. Its totient is φ = 1117110240.

The previous prime is 1138348483. The next prime is 1138348529. The reversal of 1138348511 is 1158438311.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 1138348511 - 2¹⁴ = 1138332127 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 (1138348111) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 5525 + ... + 48033.

It is an arithmetic number, because the mean of its divisors is an integer number (144959100).

Almost surely, 2^1138348511 is an apocalyptic number.

1138348511 is a deficient number, since it is larger than the sum of its proper divisors (21324289).

1138348511 is an equidigital number, since it uses as much as digits as its factorization.

1138348511 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 43009.

The product of its digits is 11520, while the sum is 35.

The square root of 1138348511 is about 33739.4207270961. The cubic root of 1138348511 is about 1044.1392333374.

The spelling of 1138348511 in words is "one billion, one hundred thirty-eight million, three hundred forty-eight thousand, five hundred eleven".