381065451 has 8 divisors (see below), whose sum is σ = 547170960. Its totient is φ = 234501792.

The previous prime is 381065431. The next prime is 381065453. The reversal of 381065451 is 154560183.

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

It is not a de Polignac number, because 381065451 - 2⁷ = 381065323 is a prime.

It is not an unprimeable number, because it can be changed into a prime (381065453) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 4885416 + ... + 4885493.

It is an arithmetic number, because the mean of its divisors is an integer number (68396370).

Almost surely, 2^381065451 is an apocalyptic number.

381065451 is a deficient number, since it is larger than the sum of its proper divisors (166105509).

381065451 is a wasteful number, since it uses less digits than its factorization.

381065451 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 9770925.

The product of its (nonzero) digits is 14400, while the sum is 33.

The square root of 381065451 is about 19520.8978020992. The cubic root of 381065451 is about 724.9919624951.

The spelling of 381065451 in words is "three hundred eighty-one million, sixty-five thousand, four hundred fifty-one".