381132117 has 6 divisors (see below), whose sum is σ = 550524182. Its totient is φ = 254088072.

The previous prime is 381132107. The next prime is 381132127. The reversal of 381132117 is 711231183.

It is a happy number.

It is an interprime number because it is at equal distance from previous prime (381132107) and next prime (381132127).

It can be written as a sum of positive squares in only one way, i.e., 302968836 + 78163281 = 17406^2 + 8841^2 .

It is not a de Polignac number, because 381132117 - 2¹¹ = 381130069 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (381132107) by changing a digit.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 21173998 + ... + 21174015.

Almost surely, 2^381132117 is an apocalyptic number.

It is an amenable number.

381132117 is a deficient number, since it is larger than the sum of its proper divisors (169392065).

381132117 is a wasteful number, since it uses less digits than its factorization.

381132117 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 42348019 (or 42348016 counting only the distinct ones).

The product of its digits is 1008, while the sum is 27.

The square root of 381132117 is about 19522.6052820826. The cubic root of 381132117 is about 725.0342382562.

The spelling of 381132117 in words is "three hundred eighty-one million, one hundred thirty-two thousand, one hundred seventeen".