18036601 has 8 divisors (see below), whose sum is σ = 19970784. Its totient is φ = 16151520.

The previous prime is 18036593. The next prime is 18036607. The reversal of 18036601 is 10663081.

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

It is not a de Polignac number, because 18036601 - 2³ = 18036593 is a prime.

It is a Duffinian number.

It is a plaindrome in base 16.

It is not an unprimeable number, because it can be changed into a prime (18036607) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 11500 + ... + 12973.

It is an arithmetic number, because the mean of its divisors is an integer number (2496348).

Almost surely, 2^18036601 is an apocalyptic number.

18036601 is a gapful number since it is divisible by the number (11) formed by its first and last digit.

It is an amenable number.

18036601 is a deficient number, since it is larger than the sum of its proper divisors (1934183).

18036601 is a wasteful number, since it uses less digits than its factorization.

18036601 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 24551.

The product of its (nonzero) digits is 864, while the sum is 25.

The square root of 18036601 is about 4246.9519658221. The cubic root of 18036601 is about 262.2516520389.

Adding to 18036601 its reverse (10663081), we get a palindrome (28699682).

The spelling of 18036601 in words is "eighteen million, thirty-six thousand, six hundred one".