1382735639 has 2 divisors, whose sum is σ = 1382735640. Its totient is φ = 1382735638.

The previous prime is 1382735609. The next prime is 1382735693. The reversal of 1382735639 is 9365372831.

Together with next prime (1382735693) it forms an Ormiston pair, because they use the same digits, order apart.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 1382735639 - 2¹² = 1382731543 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 1382735593 and 1382735602.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (1382735609) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 691367819 + 691367820.

It is an arithmetic number, because the mean of its divisors is an integer number (691367820).

Almost surely, 2^1382735639 is an apocalyptic number.

1382735639 is a deficient number, since it is larger than the sum of its proper divisors (1).

1382735639 is an equidigital number, since it uses as much as digits as its factorization.

1382735639 is an evil number, because the sum of its binary digits is even.

The product of its digits is 816480, while the sum is 47.

The square root of 1382735639 is about 37185.1534755472. The cubic root of 1382735639 is about 1114.0714689194.

The spelling of 1382735639 in words is "one billion, three hundred eighty-two million, seven hundred thirty-five thousand, six hundred thirty-nine".