197064569 has 8 divisors (see below), whose sum is σ = 213649800. Its totient is φ = 180683136.

The previous prime is 197064559. The next prime is 197064577. The reversal of 197064569 is 965460791.

It can be written as a sum of positive squares in 4 ways, for example, as 9703225 + 187361344 = 3115^2 + 13688^2 .

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

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-197064569 is a prime.

It is a super-2 number, since 2×197064569² = 77668888710311522, which contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (197064559) 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, 48932 + ... + 52805.

It is an arithmetic number, because the mean of its divisors is an integer number (26706225).

Almost surely, 2^197064569 is an apocalyptic number.

It is an amenable number.

197064569 is a deficient number, since it is larger than the sum of its proper divisors (16585231).

197064569 is a wasteful number, since it uses less digits than its factorization.

197064569 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 101899.

The product of its (nonzero) digits is 408240, while the sum is 47.

The square root of 197064569 is about 14037.9688345572. The cubic root of 197064569 is about 581.9283507488.

The spelling of 197064569 in words is "one hundred ninety-seven million, sixty-four thousand, five hundred sixty-nine".