380131663 has 2 divisors, whose sum is σ = 380131664. Its totient is φ = 380131662.

The previous prime is 380131643. The next prime is 380131693. The reversal of 380131663 is 366131083.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 380131663 - 2⁹ = 380131151 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (380131643) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 190065831 + 190065832.

It is an arithmetic number, because the mean of its divisors is an integer number (190065832).

Almost surely, 2^380131663 is an apocalyptic number.

380131663 is a deficient number, since it is larger than the sum of its proper divisors (1).

380131663 is an equidigital number, since it uses as much as digits as its factorization.

380131663 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 7776, while the sum is 31.

The square root of 380131663 is about 19496.9654818384. The cubic root of 380131663 is about 724.3992886939.

The spelling of 380131663 in words is "three hundred eighty million, one hundred thirty-one thousand, six hundred sixty-three".