1339276189 has 4 divisors (see below), whose sum is σ = 1339572124. Its totient is φ = 1338980256.

The previous prime is 1339276181. The next prime is 1339276207. The reversal of 1339276189 is 9816729331.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 9816729331 = 20753 ⋅473027.

It can be written as a sum of positive squares in 2 ways, for example, as 172712164 + 1166564025 = 13142^2 + 34155^2 .

It is a cyclic number.

It is not a de Polignac number, because 1339276189 - 2³ = 1339276181 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 (1339276181) 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, 141072 + ... + 150265.

It is an arithmetic number, because the mean of its divisors is an integer number (334893031).

Almost surely, 2^1339276189 is an apocalyptic number.

It is an amenable number.

1339276189 is a deficient number, since it is larger than the sum of its proper divisors (295935).

1339276189 is an equidigital number, since it uses as much as digits as its factorization.

1339276189 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 295934.

The product of its digits is 489888, while the sum is 49.

The square root of 1339276189 is about 36596.1225951603. The cubic root of 1339276189 is about 1102.2752325530.

The spelling of 1339276189 in words is "one billion, three hundred thirty-nine million, two hundred seventy-six thousand, one hundred eighty-nine".