381222183 has 8 divisors (see below), whose sum is σ = 512176896. Its totient is φ = 252207800.

The previous prime is 381222173. The next prime is 381222203.

381222183 is nontrivially palindromic in base 10.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 381222183 - 2⁶ = 381222119 is a prime.

It is a super-2 number, since 2×381222183² = 290660705622570978, which contains 22 as substring.

It is a self number, because there is not a number n which added to its sum of digits gives 381222183.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (381222143) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 484623 + ... + 485408.

It is an arithmetic number, because the mean of its divisors is an integer number (64022112).

Almost surely, 2^381222183 is an apocalyptic number.

381222183 is a deficient number, since it is larger than the sum of its proper divisors (130954713).

381222183 is a wasteful number, since it uses less digits than its factorization.

381222183 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 970165.

The product of its digits is 4608, while the sum is 30.

The square root of 381222183 is about 19524.9118563952. The cubic root of 381222183 is about 725.0913451296.

It can be divided in two parts, 38 and 1222183, that added together give a palindrome (1222221).

The spelling of 381222183 in words is "three hundred eighty-one million, two hundred twenty-two thousand, one hundred eighty-three".