381106351 has 8 divisors (see below), whose sum is σ = 401709680. Its totient is φ = 360557568.

The previous prime is 381106339. The next prime is 381106367. The reversal of 381106351 is 153601183.

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 381106351 - 2²¹ = 379009199 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 (381106321) 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, 1135 + ... + 27631.

It is an arithmetic number, because the mean of its divisors is an integer number (50213710).

Almost surely, 2^381106351 is an apocalyptic number.

381106351 is a deficient number, since it is larger than the sum of its proper divisors (20603329).

381106351 is a wasteful number, since it uses less digits than its factorization.

381106351 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 27273.

The product of its (nonzero) digits is 2160, while the sum is 28.

The square root of 381106351 is about 19521.9453692505. The cubic root of 381106351 is about 725.0178995184.

The spelling of 381106351 in words is "three hundred eighty-one million, one hundred six thousand, three hundred fifty-one".