381501071 has 8 divisors (see below), whose sum is σ = 436245120. Its totient is φ = 326818008.

The previous prime is 381501067. The next prime is 381501073. The reversal of 381501071 is 170105183.

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 381501071 - 2² = 381501067 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 381501071.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (381501073) 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 7 ways as a sum of consecutive naturals, for example, 941 + ... + 27638.

It is an arithmetic number, because the mean of its divisors is an integer number (54530640).

Almost surely, 2^381501071 is an apocalyptic number.

381501071 is a deficient number, since it is larger than the sum of its proper divisors (54744049).

381501071 is a wasteful number, since it uses less digits than its factorization.

381501071 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 30493.

The product of its (nonzero) digits is 840, while the sum is 26.

The square root of 381501071 is about 19532.0524011175. The cubic root of 381501071 is about 725.2681186683.

The spelling of 381501071 in words is "three hundred eighty-one million, five hundred one thousand, seventy-one".