136669017 has 4 divisors (see below), whose sum is σ = 182225360. Its totient is φ = 91112676.

The previous prime is 136669003. The next prime is 136669019. The reversal of 136669017 is 710966631.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4, and also an emirpimes, since its reverse is a distinct semiprime: 710966631 = 3 ⋅236988877.

It is not a de Polignac number, because 136669017 - 2⁶ = 136668953 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (136669019) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 22778167 + ... + 22778172.

It is an arithmetic number, because the mean of its divisors is an integer number (45556340).

Almost surely, 2^136669017 is an apocalyptic number.

It is an amenable number.

136669017 is a deficient number, since it is larger than the sum of its proper divisors (45556343).

136669017 is an equidigital number, since it uses as much as digits as its factorization.

136669017 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 45556342.

The product of its (nonzero) digits is 40824, while the sum is 39.

The square root of 136669017 is about 11690.5524676980. The cubic root of 136669017 is about 515.0981897174.

The spelling of 136669017 in words is "one hundred thirty-six million, six hundred sixty-nine thousand, seventeen".