1389517282 has 4 divisors (see below), whose sum is σ = 2084275926. Its totient is φ = 694758640.

The previous prime is 1389517273. The next prime is 1389517303. The reversal of 1389517282 is 2827159831.

It is a happy number.

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

It can be written as a sum of positive squares in only one way, i.e., 1169024481 + 220492801 = 34191^2 + 14849^2 .

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 347379319 + ... + 347379322.

Almost surely, 2^1389517282 is an apocalyptic number.

1389517282 is a deficient number, since it is larger than the sum of its proper divisors (694758644).

1389517282 is an equidigital number, since it uses as much as digits as its factorization.

1389517282 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 694758643.

The product of its digits is 241920, while the sum is 46.

The square root of 1389517282 is about 37276.2294498786. The cubic root of 1389517282 is about 1115.8898249213.

It can be divided in two parts, 1389 and 517282, that added together give a triangular number (518671 = T₁₀₁₈).

The spelling of 1389517282 in words is "one billion, three hundred eighty-nine million, five hundred seventeen thousand, two hundred eighty-two".