381242119 has 4 divisors (see below), whose sum is σ = 403668144. Its totient is φ = 358816096.

The previous prime is 381242101. The next prime is 381242137. The reversal of 381242119 is 911242183.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 911242183 = 21487 ⋅42409.

It is an interprime number because it is at equal distance from previous prime (381242101) and next prime (381242137).

It is a cyclic number.

It is not a de Polignac number, because 381242119 - 2⁹ = 381241607 is a prime.

It is a super-2 number, since 2×381242119² = 290691106599220322, which contains 22 as substring.

It is a Smith number, since the sum of its digits (31) coincides with the sum of the digits of its prime factors. Since it is squarefree, it is also a hoax number.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (381242219) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 11212987 + ... + 11213020.

It is an arithmetic number, because the mean of its divisors is an integer number (100917036).

Almost surely, 2^381242119 is an apocalyptic number.

381242119 is a deficient number, since it is larger than the sum of its proper divisors (22426025).

381242119 is a wasteful number, since it uses less digits than its factorization.

381242119 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 22426024.

The product of its digits is 3456, while the sum is 31.

The square root of 381242119 is about 19525.4223769935. The cubic root of 381242119 is about 725.1039844510.

The spelling of 381242119 in words is "three hundred eighty-one million, two hundred forty-two thousand, one hundred nineteen".