1381103919 has 64 divisors (see below), whose sum is σ = 2373235200. Its totient is φ = 786157056.

The previous prime is 1381103903. The next prime is 1381103923. The reversal of 1381103919 is 9193011831.

It is not a de Polignac number, because 1381103919 - 2⁴ = 1381103903 is a prime.

It is a super-2 number, since 2×1381103919² = 3814896070154317122, which contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1381103419) 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 63 ways as a sum of consecutive naturals, for example, 350092 + ... + 354014.

It is an arithmetic number, because the mean of its divisors is an integer number (37081800).

Almost surely, 2^1381103919 is an apocalyptic number.

1381103919 is a deficient number, since it is larger than the sum of its proper divisors (992131281).

1381103919 is a wasteful number, since it uses less digits than its factorization.

1381103919 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4021 (or 4015 counting only the distinct ones).

The product of its (nonzero) digits is 5832, while the sum is 36.

The square root of 1381103919 is about 37163.2065220427. The cubic root of 1381103919 is about 1113.6330702896.

The spelling of 1381103919 in words is "one billion, three hundred eighty-one million, one hundred three thousand, nine hundred nineteen".