1389014005 has 4 divisors (see below), whose sum is σ = 1666816812. Its totient is φ = 1111211200.

The previous prime is 1389013987. The next prime is 1389014017. The reversal of 1389014005 is 5004109831.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 5004109831 = 7 ⋅714872833.

It can be written as a sum of positive squares in 2 ways, for example, as 166952241 + 1222061764 = 12921^2 + 34958^2 .

It is not a de Polignac number, because 1389014005 - 2¹⁹ = 1388489717 is a prime.

It is a super-2 number, since 2×1389014005² = 3858719812172280050, which contains 22 as substring.

It is a Duffinian number.

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, 138901396 + ... + 138901405.

It is an arithmetic number, because the mean of its divisors is an integer number (416704203).

Almost surely, 2^1389014005 is an apocalyptic number.

It is an amenable number.

1389014005 is a deficient number, since it is larger than the sum of its proper divisors (277802807).

1389014005 is an equidigital number, since it uses as much as digits as its factorization.

1389014005 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 277802806.

The product of its (nonzero) digits is 4320, while the sum is 31.

The square root of 1389014005 is about 37269.4781959716. The cubic root of 1389014005 is about 1115.7550852033.

The spelling of 1389014005 in words is "one billion, three hundred eighty-nine million, fourteen thousand, five".