381199115 has 16 divisors (see below), whose sum is σ = 499530240. Its totient is φ = 276954720.

The previous prime is 381199111. The next prime is 381199139. The reversal of 381199115 is 511991183.

It is not a de Polignac number, because 381199115 - 2² = 381199111 is a prime.

It is not an unprimeable number, because it can be changed into a prime (381199111) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 62366 + ... + 68204.

It is an arithmetic number, because the mean of its divisors is an integer number (31220640).

Almost surely, 2^381199115 is an apocalyptic number.

381199115 is a deficient number, since it is larger than the sum of its proper divisors (118331125).

381199115 is a wasteful number, since it uses less digits than its factorization.

381199115 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 7042.

The product of its digits is 9720, while the sum is 38.

The square root of 381199115 is about 19524.3211149581. The cubic root of 381199115 is about 725.0767195864.

It can be divided in two parts, 3 and 81199115, that added together give a palindrome (81199118).

The spelling of 381199115 in words is "three hundred eighty-one million, one hundred ninety-nine thousand, one hundred fifteen".