609148859 has 8 divisors (see below), whose sum is σ = 693418752. Its totient is φ = 529694440.

The previous prime is 609148847. The next prime is 609148889. The reversal of 609148859 is 958841906.

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 609148859 - 2¹² = 609144763 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (609148819) 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 7 ways as a sum of consecutive naturals, for example, 1203599 + ... + 1204104.

It is an arithmetic number, because the mean of its divisors is an integer number (86677344).

Almost surely, 2^609148859 is an apocalyptic number.

609148859 is a deficient number, since it is larger than the sum of its proper divisors (84269893).

609148859 is a wasteful number, since it uses less digits than its factorization.

609148859 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2407737.

The product of its (nonzero) digits is 622080, while the sum is 50.

The square root of 609148859 is about 24680.9412097675. The cubic root of 609148859 is about 847.6979736654.

The spelling of 609148859 in words is "six hundred nine million, one hundred forty-eight thousand, eight hundred fifty-nine".