381295213 has 8 divisors (see below), whose sum is σ = 410778648. Its totient is φ = 351833664.

The previous prime is 381295199. The next prime is 381295241. The reversal of 381295213 is 312592183.

It can be written as a sum of positive squares in 4 ways, for example, as 381924 + 380913289 = 618^2 + 19517^2 .

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

It is not a de Polignac number, because 381295213 - 2⁵ = 381295181 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 (381295253) 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, 58431 + ... + 64627.

It is an arithmetic number, because the mean of its divisors is an integer number (51347331).

Almost surely, 2^381295213 is an apocalyptic number.

It is an amenable number.

381295213 is a deficient number, since it is larger than the sum of its proper divisors (29483435).

381295213 is a wasteful number, since it uses less digits than its factorization.

381295213 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 10943.

The product of its digits is 12960, while the sum is 34.

The square root of 381295213 is about 19526.7819417333. The cubic root of 381295213 is about 725.1376436245.

The spelling of 381295213 in words is "three hundred eighty-one million, two hundred ninety-five thousand, two hundred thirteen".