382019081 has 2 divisors, whose sum is σ = 382019082. Its totient is φ = 382019080.

The previous prime is 382019047. The next prime is 382019093. The reversal of 382019081 is 180910283.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 310464400 + 71554681 = 17620^2 + 8459^2 .

It is an emirp because it is prime and its reverse (180910283) is a distict prime.

It is a cyclic number.

It is not a de Polignac number, because 382019081 - 2¹⁴ = 382002697 is a prime.

It is a super-2 number, since 2×382019081² = 291877156496169122, which contains 22 as substring.

It is a Chen prime.

It is not a weakly prime, because it can be changed into another prime (382019021) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 191009540 + 191009541.

It is an arithmetic number, because the mean of its divisors is an integer number (191009541).

Almost surely, 2^382019081 is an apocalyptic number.

It is an amenable number.

382019081 is a deficient number, since it is larger than the sum of its proper divisors (1).

382019081 is an equidigital number, since it uses as much as digits as its factorization.

382019081 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 3456, while the sum is 32.

The square root of 382019081 is about 19545.3084140415. The cubic root of 382019081 is about 725.5962315294.

It can be divided in two parts, 38 and 2019081, that multiplied together give a triangular number (76725078 = T₁₂₃₈₇).

The spelling of 382019081 in words is "three hundred eighty-two million, nineteen thousand, eighty-one".