380129 has 2 divisors, whose sum is σ = 380130. Its totient is φ = 380128.

The previous prime is 380117. The next prime is 380131. The reversal of 380129 is 921083.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 277729 + 102400 = 527^2 + 320^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-380129 is a prime.

Together with 380131, it forms a pair of twin primes.

It is a Chen prime.

It is not a weakly prime, because it can be changed into another prime (380179) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 190064 + 190065.

It is an arithmetic number, because the mean of its divisors is an integer number (190065).

2³⁸⁰¹²⁹ is an apocalyptic number.

It is an amenable number.

380129 is a deficient number, since it is larger than the sum of its proper divisors (1).

380129 is an equidigital number, since it uses as much as digits as its factorization.

380129 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 432, while the sum is 23.

The square root of 380129 is about 616.5460242350. The cubic root of 380129 is about 72.4397597105.

The spelling of 380129 in words is "three hundred eighty thousand, one hundred twenty-nine".