381132116 has 24 divisors (see below), whose sum is σ = 697946760. Its totient is φ = 181913472.

The previous prime is 381132107. The next prime is 381132127. The reversal of 381132116 is 611231183.

It can be written as a sum of positive squares in 4 ways, for example, as 203176516 + 177955600 = 14254^2 + 13340^2 .

It is a congruent number.

It is an unprimeable number.

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 7 ways as a sum of consecutive naturals, for example, 16451 + ... + 32138.

It is an arithmetic number, because the mean of its divisors is an integer number (29081115).

Almost surely, 2^381132116 is an apocalyptic number.

It is an amenable number.

381132116 is a deficient number, since it is larger than the sum of its proper divisors (316814644).

381132116 is a wasteful number, since it uses less digits than its factorization.

381132116 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 48683 (or 48681 counting only the distinct ones).

The product of its digits is 864, while the sum is 26.

The square root of 381132116 is about 19522.6052564713. The cubic root of 381132116 is about 725.0342376221.

Adding to 381132116 its reverse (611231183), we get a palindrome (992363299).

The spelling of 381132116 in words is "three hundred eighty-one million, one hundred thirty-two thousand, one hundred sixteen".