1982175079 has 2 divisors, whose sum is σ = 1982175080. Its totient is φ = 1982175078.

The previous prime is 1982175067. The next prime is 1982175119. The reversal of 1982175079 is 9705712891.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 1982175079 - 2⁹ = 1982174567 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (1982175049) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 991087539 + 991087540.

It is an arithmetic number, because the mean of its divisors is an integer number (991087540).

Almost surely, 2^1982175079 is an apocalyptic number.

1982175079 is a deficient number, since it is larger than the sum of its proper divisors (1).

1982175079 is an equidigital number, since it uses as much as digits as its factorization.

1982175079 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 317520, while the sum is 49.

The square root of 1982175079 is about 44521.6248468090. The cubic root of 1982175079 is about 1256.1668758675.

The spelling of 1982175079 in words is "one billion, nine hundred eighty-two million, one hundred seventy-five thousand, seventy-nine".