1381219329 has 16 divisors (see below), whose sum is σ = 2120785920. Its totient is φ = 783241680.

The previous prime is 1381219327. The next prime is 1381219363. The reversal of 1381219329 is 9239121831.

It is not a de Polignac number, because 1381219329 - 2¹ = 1381219327 is a prime.

It is a Curzon number.

It is not an unprimeable number, because it can be changed into a prime (1381219327) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 248289 + ... + 253790.

It is an arithmetic number, because the mean of its divisors is an integer number (132549120).

Almost surely, 2^1381219329 is an apocalyptic number.

It is an amenable number.

1381219329 is a deficient number, since it is larger than the sum of its proper divisors (739566591).

1381219329 is a wasteful number, since it uses less digits than its factorization.

1381219329 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 502220.

The product of its digits is 23328, while the sum is 39.

The square root of 1381219329 is about 37164.7592350603. The cubic root of 1381219329 is about 1113.6640891509.

The spelling of 1381219329 in words is "one billion, three hundred eighty-one million, two hundred nineteen thousand, three hundred twenty-nine".