1383982517 has 4 divisors (see below), whose sum is σ = 1398250476. Its totient is φ = 1369714560.

The previous prime is 1383982493. The next prime is 1383982547. The reversal of 1383982517 is 7152893831.

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 1083792241 + 300190276 = 32921^2 + 17326^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-1383982517 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 (1383982547) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 7133834 + ... + 7134027.

It is an arithmetic number, because the mean of its divisors is an integer number (349562619).

Almost surely, 2^1383982517 is an apocalyptic number.

It is an amenable number.

1383982517 is a deficient number, since it is larger than the sum of its proper divisors (14267959).

1383982517 is an equidigital number, since it uses as much as digits as its factorization.

1383982517 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 14267958.

The product of its digits is 362880, while the sum is 47.

The square root of 1383982517 is about 37201.9155017588. The cubic root of 1383982517 is about 1114.4062385921.

The spelling of 1383982517 in words is "one billion, three hundred eighty-three million, nine hundred eighty-two thousand, five hundred seventeen".