20231601 has 8 divisors (see below), whose sum is σ = 29050560. Its totient is φ = 12450192.

The previous prime is 20231597. The next prime is 20231639. The reversal of 20231601 is 10613202.

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

It is not a de Polignac number, because 20231601 - 2² = 20231597 is a prime.

It is not an unprimeable number, because it can be changed into a prime (20231641) 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, 259341 + ... + 259418.

It is an arithmetic number, because the mean of its divisors is an integer number (3631320).

Almost surely, 2^20231601 is an apocalyptic number.

It is an amenable number.

20231601 is a deficient number, since it is larger than the sum of its proper divisors (8818959).

20231601 is a wasteful number, since it uses less digits than its factorization.

20231601 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 518775.

The product of its (nonzero) digits is 72, while the sum is 15.

The square root of 20231601 is about 4497.9552020891. The cubic root of 20231601 is about 272.4855127949.

Adding to 20231601 its reverse (10613202), we get a palindrome (30844803).

The spelling of 20231601 in words is "twenty million, two hundred thirty-one thousand, six hundred one".