381713357 has 2 divisors, whose sum is σ = 381713358. Its totient is φ = 381713356.

The previous prime is 381713347. The next prime is 381713369. The reversal of 381713357 is 753317183.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 358950916 + 22762441 = 18946^2 + 4771^2 .

It is a cyclic number.

It is not a de Polignac number, because 381713357 - 2¹⁶ = 381647821 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 381713357.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (381713317) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 190856678 + 190856679.

It is an arithmetic number, because the mean of its divisors is an integer number (190856679).

Almost surely, 2^381713357 is an apocalyptic number.

It is an amenable number.

381713357 is a deficient number, since it is larger than the sum of its proper divisors (1).

381713357 is an equidigital number, since it uses as much as digits as its factorization.

381713357 is an evil number, because the sum of its binary digits is even.

The product of its digits is 52920, while the sum is 38.

The square root of 381713357 is about 19537.4859436930. The cubic root of 381713357 is about 725.4026187005.

The spelling of 381713357 in words is "three hundred eighty-one million, seven hundred thirteen thousand, three hundred fifty-seven".