381359653 has 2 divisors, whose sum is σ = 381359654. Its totient is φ = 381359652.

The previous prime is 381359603. The next prime is 381359677. The reversal of 381359653 is 356953183.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 289238049 + 92121604 = 17007^2 + 9598^2 .

It is a cyclic number.

It is not a de Polignac number, because 381359653 - 2¹⁷ = 381228581 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (381359603) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 190679826 + 190679827.

It is an arithmetic number, because the mean of its divisors is an integer number (190679827).

Almost surely, 2^381359653 is an apocalyptic number.

It is an amenable number.

381359653 is a deficient number, since it is larger than the sum of its proper divisors (1).

381359653 is an equidigital number, since it uses as much as digits as its factorization.

381359653 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 291600, while the sum is 43.

The square root of 381359653 is about 19528.4319134947. The cubic root of 381359653 is about 725.1784914470.

The spelling of 381359653 in words is "three hundred eighty-one million, three hundred fifty-nine thousand, six hundred fifty-three".