197061489 has 6 divisors (see below), whose sum is σ = 284644386. Its totient is φ = 131374320.

The previous prime is 197061463. The next prime is 197061499. The reversal of 197061489 is 984160791.

It is a happy number.

It can be written as a sum of positive squares in only one way, i.e., 193432464 + 3629025 = 13908^2 + 1905^2 .

It is not a de Polignac number, because 197061489 - 2¹⁷ = 196930417 is a prime.

It is a Curzon number.

It is not an unprimeable number, because it can be changed into a prime (197061439) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 10947852 + ... + 10947869.

It is an arithmetic number, because the mean of its divisors is an integer number (47440731).

Almost surely, 2^197061489 is an apocalyptic number.

It is an amenable number.

197061489 is a deficient number, since it is larger than the sum of its proper divisors (87582897).

197061489 is a wasteful number, since it uses less digits than its factorization.

197061489 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 21895727 (or 21895724 counting only the distinct ones).

The product of its (nonzero) digits is 108864, while the sum is 45.

The square root of 197061489 is about 14037.8591316482. The cubic root of 197061489 is about 581.9253190036.

The spelling of 197061489 in words is "one hundred ninety-seven million, sixty-one thousand, four hundred eighty-nine".