380115761 has 2 divisors, whose sum is σ = 380115762. Its totient is φ = 380115760.

The previous prime is 380115739. The next prime is 380115787. The reversal of 380115761 is 167511083.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 292581025 + 87534736 = 17105^2 + 9356^2 .

It is a cyclic number.

It is not a de Polignac number, because 380115761 - 2¹⁰ = 380114737 is a prime.

It is a Chen prime.

It is not a weakly prime, because it can be changed into another prime (380115061) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 190057880 + 190057881.

It is an arithmetic number, because the mean of its divisors is an integer number (190057881).

Almost surely, 2^380115761 is an apocalyptic number.

It is an amenable number.

380115761 is a deficient number, since it is larger than the sum of its proper divisors (1).

380115761 is an equidigital number, since it uses as much as digits as its factorization.

380115761 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 5040, while the sum is 32.

The square root of 380115761 is about 19496.5576705223. The cubic root of 380115761 is about 724.3891873183.

The spelling of 380115761 in words is "three hundred eighty million, one hundred fifteen thousand, seven hundred sixty-one".