382051661 has 2 divisors, whose sum is σ = 382051662. Its totient is φ = 382051660.

The previous prime is 382051627. The next prime is 382051699. The reversal of 382051661 is 166150283.

It is a happy number.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 246678436 + 135373225 = 15706^2 + 11635^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-382051661 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (382051561) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 191025830 + 191025831.

It is an arithmetic number, because the mean of its divisors is an integer number (191025831).

Almost surely, 2^382051661 is an apocalyptic number.

It is an amenable number.

382051661 is a deficient number, since it is larger than the sum of its proper divisors (1).

382051661 is an equidigital number, since it uses as much as digits as its factorization.

382051661 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 8640, while the sum is 32.

The square root of 382051661 is about 19546.1418443641. The cubic root of 382051661 is about 725.6168581197.

The spelling of 382051661 in words is "three hundred eighty-two million, fifty-one thousand, six hundred sixty-one".