388241129 has 2 divisors, whose sum is σ = 388241130. Its totient is φ = 388241128.

The previous prime is 388241123. The next prime is 388241141. The reversal of 388241129 is 921142883.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 362026729 + 26214400 = 19027^2 + 5120^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-388241129 is a prime.

It is a Chen prime.

It is a junction number, because it is equal to n+sod(n) for n = 388241092 and 388241101.

It is not a weakly prime, because it can be changed into another prime (388241123) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 194120564 + 194120565.

It is an arithmetic number, because the mean of its divisors is an integer number (194120565).

Almost surely, 2^388241129 is an apocalyptic number.

It is an amenable number.

388241129 is a deficient number, since it is larger than the sum of its proper divisors (1).

388241129 is an equidigital number, since it uses as much as digits as its factorization.

388241129 is an evil number, because the sum of its binary digits is even.

The product of its digits is 27648, while the sum is 38.

The square root of 388241129 is about 19703.8353880659. The cubic root of 388241129 is about 729.5143633067.

The spelling of 388241129 in words is "three hundred eighty-eight million, two hundred forty-one thousand, one hundred twenty-nine".