381115107 has 12 divisors (see below), whose sum is σ = 551151640. Its totient is φ = 253775808.

The previous prime is 381115099. The next prime is 381115123. The reversal of 381115107 is 701511183.

381115107 is a `hidden beast` number, since 38 + 111 + 510 + 7 = 666.

It is not a de Polignac number, because 381115107 - 2³ = 381115099 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (381115127) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 16918 + ... + 32379.

Almost surely, 2^381115107 is an apocalyptic number.

381115107 is a deficient number, since it is larger than the sum of its proper divisors (170036533).

381115107 is a wasteful number, since it uses less digits than its factorization.

381115107 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 50162 (or 50159 counting only the distinct ones).

The product of its (nonzero) digits is 840, while the sum is 27.

The square root of 381115107 is about 19522.1696283994. The cubic root of 381115107 is about 725.0234519564.

The spelling of 381115107 in words is "three hundred eighty-one million, one hundred fifteen thousand, one hundred seven".