1380947039 has 4 divisors (see below), whose sum is σ = 1381041600. Its totient is φ = 1380852480.

The previous prime is 1380947033. The next prime is 1380947063. The reversal of 1380947039 is 9307490831.

It is a happy number.

It is a semiprime because it is the product of two primes, and also a brilliant number, because the two primes have the same length, and also an emirpimes, since its reverse is a distinct semiprime: 9307490831 = 6763 ⋅1376237.

It is a cyclic number.

It is not a de Polignac number, because 1380947039 - 2⁴ = 1380947023 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 (1380947033) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 20207 + ... + 56304.

It is an arithmetic number, because the mean of its divisors is an integer number (345260400).

Almost surely, 2^1380947039 is an apocalyptic number.

1380947039 is a deficient number, since it is larger than the sum of its proper divisors (94561).

1380947039 is an equidigital number, since it uses as much as digits as its factorization.

1380947039 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 94560.

The product of its (nonzero) digits is 163296, while the sum is 44.

The square root of 1380947039 is about 37161.0957723262. The cubic root of 1380947039 is about 1113.5909027237.

The spelling of 1380947039 in words is "one billion, three hundred eighty million, nine hundred forty-seven thousand, thirty-nine".