669197135 has 8 divisors (see below), whose sum is σ = 806575536. Its totient is φ = 532998400.

The previous prime is 669197131. The next prime is 669197159. The reversal of 669197135 is 531791966.

It is a happy number.

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

It is not a de Polignac number, because 669197135 - 2² = 669197131 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 669197135.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (669197131) 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 7 ways as a sum of consecutive naturals, for example, 293666 + ... + 295935.

It is an arithmetic number, because the mean of its divisors is an integer number (100821942).

Almost surely, 2^669197135 is an apocalyptic number.

669197135 is a deficient number, since it is larger than the sum of its proper divisors (137378401).

669197135 is a wasteful number, since it uses less digits than its factorization.

669197135 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 589833.

The product of its digits is 306180, while the sum is 47.

The square root of 669197135 is about 25868.8448717758. The cubic root of 669197135 is about 874.6843530862.

The spelling of 669197135 in words is "six hundred sixty-nine million, one hundred ninety-seven thousand, one hundred thirty-five".