163247045 has 8 divisors (see below), whose sum is σ = 210965496. Its totient is φ = 120551616.

The previous prime is 163247017. The next prime is 163247057. The reversal of 163247045 is 540742361.

It can be written as a sum of positive squares in 4 ways, for example, as 3452164 + 159794881 = 1858^2 + 12641^2 .

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

It is a cyclic number.

It is not a de Polignac number, because 163247045 - 2⁶ = 163246981 is a prime.

It is a Duffinian number.

It is a congruent number.

It is an unprimeable number.

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, 1255682 + ... + 1255811.

It is an arithmetic number, because the mean of its divisors is an integer number (26370687).

Almost surely, 2^163247045 is an apocalyptic number.

It is an amenable number.

163247045 is a deficient number, since it is larger than the sum of its proper divisors (47718451).

163247045 is a wasteful number, since it uses less digits than its factorization.

163247045 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2511511.

The product of its (nonzero) digits is 20160, while the sum is 32.

The square root of 163247045 is about 12776.8167005714. The cubic root of 163247045 is about 546.5313885888.

The spelling of 163247045 in words is "one hundred sixty-three million, two hundred forty-seven thousand, forty-five".