16013601 has 6 divisors (see below), whose sum is σ = 23130770. Its totient is φ = 10675728.

The previous prime is 16013567. The next prime is 16013611. The reversal of 16013601 is 10631061.

16013601 is a `hidden beast` number, since 1 + 60 + 1 + 3 + 601 = 666.

It can be written as a sum of positive squares in only one way, i.e., 14630625 + 1382976 = 3825^2 + 1176^2 .

It is not a de Polignac number, because 16013601 - 2¹¹ = 16011553 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (16013611) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 889636 + ... + 889653.

Almost surely, 2^16013601 is an apocalyptic number.

It is an amenable number.

16013601 is a deficient number, since it is larger than the sum of its proper divisors (7117169).

16013601 is a wasteful number, since it uses less digits than its factorization.

16013601 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1779295 (or 1779292 counting only the distinct ones).

The product of its (nonzero) digits is 108, while the sum is 18.

The square root of 16013601 is about 4001.6997638504. The cubic root of 16013601 is about 252.0555905326.

Adding to 16013601 its reverse (10631061), we get a palindrome (26644662).

The spelling of 16013601 in words is "sixteen million, thirteen thousand, six hundred one".