381712501 has 8 divisors (see below), whose sum is σ = 391313664. Its totient is φ = 372125280.

The previous prime is 381712493. The next prime is 381712537. The reversal of 381712501 is 105217183.

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 381712501 - 2³ = 381712493 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 381712501.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (381712801) 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, 72190 + ... + 77296.

It is an arithmetic number, because the mean of its divisors is an integer number (48914208).

Almost surely, 2^381712501 is an apocalyptic number.

It is an amenable number.

381712501 is a deficient number, since it is larger than the sum of its proper divisors (9601163).

381712501 is a wasteful number, since it uses less digits than its factorization.

381712501 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 6971.

The product of its (nonzero) digits is 1680, while the sum is 28.

The square root of 381712501 is about 19537.4640370750. The cubic root of 381712501 is about 725.4020764567.

Adding to 381712501 its reverse (105217183), we get a palindrome (486929684).

The spelling of 381712501 in words is "three hundred eighty-one million, seven hundred twelve thousand, five hundred one".