1383982521 has 8 divisors (see below), whose sum is σ = 1895183424. Its totient is φ = 897718320.

The previous prime is 1383982493. The next prime is 1383982547. The reversal of 1383982521 is 1252893831.

It is a happy number.

It is a sphenic number, since it is the product of 3 distinct primes.

It is not a de Polignac number, because 1383982521 - 2⁵ = 1383982489 is a prime.

It is a Curzon number.

It is not an unprimeable number, because it can be changed into a prime (1383982571) 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 7 ways as a sum of consecutive naturals, for example, 6234045 + ... + 6234266.

It is an arithmetic number, because the mean of its divisors is an integer number (236897928).

Almost surely, 2^1383982521 is an apocalyptic number.

It is an amenable number.

1383982521 is a deficient number, since it is larger than the sum of its proper divisors (511200903).

1383982521 is a wasteful number, since it uses less digits than its factorization.

1383982521 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 12468351.

The product of its digits is 103680, while the sum is 42.

The square root of 1383982521 is about 37201.9155555194. The cubic root of 1383982521 is about 1114.4062396657.

The spelling of 1383982521 in words is "one billion, three hundred eighty-three million, nine hundred eighty-two thousand, five hundred twenty-one".