381713351 has 4 divisors (see below), whose sum is σ = 381755400. Its totient is φ = 381671304.

The previous prime is 381713347. The next prime is 381713357. The reversal of 381713351 is 153317183.

It is a semiprime because it is the product of two primes, and also a brilliant number, because the two primes have the same length, and also an emirpimes, since its reverse is a distinct semiprime: 153317183 = 223 ⋅687521.

It is a cyclic number.

It is not a de Polignac number, because 381713351 - 2² = 381713347 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 (381713357) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 1136 + ... + 27653.

It is an arithmetic number, because the mean of its divisors is an integer number (95438850).

Almost surely, 2^381713351 is an apocalyptic number.

381713351 is a deficient number, since it is larger than the sum of its proper divisors (42049).

381713351 is a wasteful number, since it uses less digits than its factorization.

381713351 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 42048.

The product of its digits is 7560, while the sum is 32.

The square root of 381713351 is about 19537.4857901420. The cubic root of 381713351 is about 725.4026148997.

The spelling of 381713351 in words is "three hundred eighty-one million, seven hundred thirteen thousand, three hundred fifty-one".