163015601 has 12 divisors (see below), whose sum is σ = 200786148. Its totient is φ = 131507712.

The previous prime is 163015597. The next prime is 163015603. The reversal of 163015601 is 106510361.

It is a happy number.

It can be written as a sum of positive squares in 2 ways, for example, as 74373376 + 88642225 = 8624^2 + 9415^2 .

It is not a de Polignac number, because 163015601 - 2² = 163015597 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (163015603) 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 11 ways as a sum of consecutive naturals, for example, 97016 + ... + 98681.

It is an arithmetic number, because the mean of its divisors is an integer number (16732179).

Almost surely, 2^163015601 is an apocalyptic number.

It is an amenable number.

163015601 is a deficient number, since it is larger than the sum of its proper divisors (37770547).

163015601 is a wasteful number, since it uses less digits than its factorization.

163015601 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 195728 (or 195721 counting only the distinct ones).

The product of its (nonzero) digits is 540, while the sum is 23.

The square root of 163015601 is about 12767.7563024989. The cubic root of 163015601 is about 546.2729842469.

Adding to 163015601 its reverse (106510361), we get a palindrome (269525962).

The spelling of 163015601 in words is "one hundred sixty-three million, fifteen thousand, six hundred one".