381374351 has 4 divisors (see below), whose sum is σ = 381706272. Its totient is φ = 381042432.

The previous prime is 381374347. The next prime is 381374363. The reversal of 381374351 is 153473183.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 381374351 - 2² = 381374347 is a prime.

It is a super-3 number, since 3×381374351³ (a number of 27 digits) contains 333 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (381374381) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 164231 + ... + 166536.

It is an arithmetic number, because the mean of its divisors is an integer number (95426568).

Almost surely, 2^381374351 is an apocalyptic number.

381374351 is a deficient number, since it is larger than the sum of its proper divisors (331921).

381374351 is a wasteful number, since it uses less digits than its factorization.

381374351 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 331920.

The product of its digits is 30240, while the sum is 35.

The square root of 381374351 is about 19528.8082329670. The cubic root of 381374351 is about 725.1878077066.

The spelling of 381374351 in words is "three hundred eighty-one million, three hundred seventy-four thousand, three hundred fifty-one".