381365429 has 2 divisors, whose sum is σ = 381365430. Its totient is φ = 381365428.

The previous prime is 381365381. The next prime is 381365443. The reversal of 381365429 is 924563183.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 245642929 + 135722500 = 15673^2 + 11650^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-381365429 is a prime.

It is a super-3 number, since 3×381365429³ (a number of 27 digits) contains 333 as substring.

It is a Chen prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (381365459) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 190682714 + 190682715.

It is an arithmetic number, because the mean of its divisors is an integer number (190682715).

Almost surely, 2^381365429 is an apocalyptic number.

It is an amenable number.

381365429 is a deficient number, since it is larger than the sum of its proper divisors (1).

381365429 is an equidigital number, since it uses as much as digits as its factorization.

381365429 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 155520, while the sum is 41.

The square root of 381365429 is about 19528.5797998728. The cubic root of 381365429 is about 725.1821525666.

The spelling of 381365429 in words is "three hundred eighty-one million, three hundred sixty-five thousand, four hundred twenty-nine".