197253841 has 2 divisors, whose sum is σ = 197253842. Its totient is φ = 197253840.

The previous prime is 197253821. The next prime is 197253871. The reversal of 197253841 is 148352791.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 193794241 + 3459600 = 13921^2 + 1860^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-197253841 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 197253794 and 197253803.

It is not a weakly prime, because it can be changed into another prime (197253821) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 98626920 + 98626921.

It is an arithmetic number, because the mean of its divisors is an integer number (98626921).

Almost surely, 2^197253841 is an apocalyptic number.

It is an amenable number.

197253841 is a deficient number, since it is larger than the sum of its proper divisors (1).

197253841 is an equidigital number, since it uses as much as digits as its factorization.

197253841 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 60480, while the sum is 40.

The square root of 197253841 is about 14044.7086477435. The cubic root of 197253841 is about 582.1145968097.

The spelling of 197253841 in words is "one hundred ninety-seven million, two hundred fifty-three thousand, eight hundred forty-one".