197982282305 has 8 divisors (see below), whose sum is σ = 237617793000. Its totient is φ = 158359789696.

The previous prime is 197982282301. The next prime is 197982282313. The reversal of 197982282305 is 503282289791.

It is a happy number.

It is a Cunningham number, because it is equal to 444952²+1.

It can be written as a sum of positive squares in 4 ways, for example, as 44568276544 + 153414005761 = 211112^2 + 391681^2 .

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 197982282305 - 2² = 197982282301 is a prime.

It is a super-2 number, since 2×197982282305² (a number of 23 digits) contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (197982282301) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 3221030 + ... + 3281919.

It is an arithmetic number, because the mean of its divisors is an integer number (29702224125).

Almost surely, 2^197982282305 is an apocalyptic number.

It is an amenable number.

197982282305 is a deficient number, since it is larger than the sum of its proper divisors (39635510695).

197982282305 is an equidigital number, since it uses as much as digits as its factorization.

197982282305 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 6509043.

The product of its (nonzero) digits is 4354560, while the sum is 56.

The spelling of 197982282305 in words is "one hundred ninety-seven billion, nine hundred eighty-two million, two hundred eighty-two thousand, three hundred five".