197670049201 has 9 divisors (see below), whose sum is σ = 209989707841. Its totient is φ = 186035285632.

The previous prime is 197670049183. The next prime is 197670049207. The reversal of 197670049201 is 102940076791.

The square root of 197670049201 is 444601.

It is a perfect power (a square), and thus also a powerful number.

It can be written as a sum of positive squares in 4 ways, for example, as 3294874801 + 194375174400 = 57401^2 + 440880^2 .

It is not a de Polignac number, because 197670049201 - 2²¹ = 197667952049 is a prime.

It is a super-2 number, since 2×197670049201² (a number of 23 digits) contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (197670049207) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 8 ways as a sum of consecutive naturals, for example, 7545141 + ... + 7571293.

Almost surely, 2^197670049201 is an apocalyptic number.

197670049201 is the 444601-st square number.

197670049201 is the 222301-st centered octagonal number.

It is an amenable number.

197670049201 is a deficient number, since it is larger than the sum of its proper divisors (12319658640).

197670049201 is an frugal number, since it uses more digits than its factorization.

197670049201 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 52340 (or 26170 counting only the distinct ones).

The product of its (nonzero) digits is 190512, while the sum is 46.

The spelling of 197670049201 in words is "one hundred ninety-seven billion, six hundred seventy million, forty-nine thousand, two hundred one".