66134245 has 8 divisors (see below), whose sum is σ = 79563384. Its totient is φ = 52772544.

The previous prime is 66134203. The next prime is 66134249. The reversal of 66134245 is 54243166.

66134245 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It can be written as a sum of positive squares in 4 ways, for example, as 6180196 + 59954049 = 2486^2 + 7743^2 .

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-66134245 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (66134249) 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 7 ways as a sum of consecutive naturals, for example, 14674 + ... + 18643.

It is an arithmetic number, because the mean of its divisors is an integer number (9945423).

Almost surely, 2^66134245 is an apocalyptic number.

It is an amenable number.

66134245 is a deficient number, since it is larger than the sum of its proper divisors (13429139).

66134245 is a wasteful number, since it uses less digits than its factorization.

66134245 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 33719.

The product of its digits is 17280, while the sum is 31.

The square root of 66134245 is about 8132.2964161422. The cubic root of 66134245 is about 404.3978146142.

The spelling of 66134245 in words is "sixty-six million, one hundred thirty-four thousand, two hundred forty-five".