1389175135 has 4 divisors (see below), whose sum is σ = 1667010168. Its totient is φ = 1111340104.

The previous prime is 1389175129. The next prime is 1389175153. The reversal of 1389175135 is 5315719831.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 5315719831 = 4903 ⋅1084177.

It is a cyclic number.

It is not a de Polignac number, because 1389175135 - 2¹³ = 1389166943 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 1389175091 and 1389175100.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 138917509 + ... + 138917518.

It is an arithmetic number, because the mean of its divisors is an integer number (416752542).

Almost surely, 2^1389175135 is an apocalyptic number.

1389175135 is a deficient number, since it is larger than the sum of its proper divisors (277835033).

1389175135 is an equidigital number, since it uses as much as digits as its factorization.

1389175135 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 277835032.

The product of its digits is 113400, while the sum is 43.

The square root of 1389175135 is about 37271.6398217197. The cubic root of 1389175135 is about 1115.7982272366.

The spelling of 1389175135 in words is "one billion, three hundred eighty-nine million, one hundred seventy-five thousand, one hundred thirty-five".