1379001289 has 4 divisors (see below), whose sum is σ = 1379350980. Its totient is φ = 1378651600.

The previous prime is 1379001229. The next prime is 1379001293. The reversal of 1379001289 is 9821009731.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in 2 ways, for example, as 222457225 + 1156544064 = 14915^2 + 34008^2 .

It is a cyclic number.

It is not a de Polignac number, because 1379001289 - 2¹¹ = 1378999241 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (1379001229) 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, 168862 + ... + 176839.

It is an arithmetic number, because the mean of its divisors is an integer number (344837745).

Almost surely, 2^1379001289 is an apocalyptic number.

It is an amenable number.

1379001289 is a deficient number, since it is larger than the sum of its proper divisors (349691).

1379001289 is an equidigital number, since it uses as much as digits as its factorization.

1379001289 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 349690.

The product of its (nonzero) digits is 27216, while the sum is 40.

The square root of 1379001289 is about 37134.9066108964. The cubic root of 1379001289 is about 1113.0676415384.

The spelling of 1379001289 in words is "one billion, three hundred seventy-nine million, one thousand, two hundred eighty-nine".