20001152 has 16 divisors (see below), whose sum is σ = 39846300. Its totient is φ = 10000512.

The previous prime is 20001151. The next prime is 20001161. The reversal of 20001152 is 25110002.

It is a tau number, because it is divible by the number of its divisors (16).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (20001151) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 78002 + ... + 78257.

Almost surely, 2^20001152 is an apocalyptic number.

It is an amenable number.

20001152 is a deficient number, since it is larger than the sum of its proper divisors (19845148).

20001152 is an equidigital number, since it uses as much as digits as its factorization.

20001152 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 156273 (or 156261 counting only the distinct ones).

The product of its (nonzero) digits is 20, while the sum is 11.

The square root of 20001152 is about 4472.2647506605. The cubic root of 20001152 is about 271.4469732413.

Adding to 20001152 its reverse (25110002), we get a palindrome (45111154).

The spelling of 20001152 in words is "twenty million, one thousand, one hundred fifty-two".