1381884117 has 64 divisors (see below), whose sum is σ = 2139955200. Its totient is φ = 787415040.

The previous prime is 1381884109. The next prime is 1381884149. The reversal of 1381884117 is 7114881831.

It is not a de Polignac number, because 1381884117 - 2³ = 1381884109 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1381884107) by changing a digit.

It is a polite number, since it can be written in 63 ways as a sum of consecutive naturals, for example, 5376853 + ... + 5377109.

It is an arithmetic number, because the mean of its divisors is an integer number (33436800).

Almost surely, 2^1381884117 is an apocalyptic number.

1381884117 is a gapful number since it is divisible by the number (17) formed by its first and last digit.

It is an amenable number.

1381884117 is a deficient number, since it is larger than the sum of its proper divisors (758071083).

1381884117 is a wasteful number, since it uses less digits than its factorization.

1381884117 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 506.

The product of its digits is 43008, while the sum is 42.

The square root of 1381884117 is about 37173.7019544731. The cubic root of 1381884117 is about 1113.8427312537.

The spelling of 1381884117 in words is "one billion, three hundred eighty-one million, eight hundred eighty-four thousand, one hundred seventeen".