382609081 has 2 divisors, whose sum is σ = 382609082. Its totient is φ = 382609080.

The previous prime is 382609057. The next prime is 382609091. The reversal of 382609081 is 180906283.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 304816681 + 77792400 = 17459^2 + 8820^2 .

It is a cyclic number.

It is not a de Polignac number, because 382609081 - 2¹⁹ = 382084793 is a prime.

It is a super-2 number, since 2×382609081² = 292779417727329122, which contains 22 as substring.

It is a self number, because there is not a number n which added to its sum of digits gives 382609081.

It is not a weakly prime, because it can be changed into another prime (382609091) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 191304540 + 191304541.

It is an arithmetic number, because the mean of its divisors is an integer number (191304541).

Almost surely, 2^382609081 is an apocalyptic number.

It is an amenable number.

382609081 is a deficient number, since it is larger than the sum of its proper divisors (1).

382609081 is an equidigital number, since it uses as much as digits as its factorization.

382609081 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 20736, while the sum is 37.

The square root of 382609081 is about 19560.3957270808. The cubic root of 382609081 is about 725.9695824921.

The spelling of 382609081 in words is "three hundred eighty-two million, six hundred nine thousand, eighty-one".