20161153 has 2 divisors, whose sum is σ = 20161154. Its totient is φ = 20161152.

The previous prime is 20161151. The next prime is 20161157. The reversal of 20161153 is 35116102.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 15547249 + 4613904 = 3943^2 + 2148^2 .

It is a cyclic number.

It is not a de Polignac number, because 20161153 - 2¹ = 20161151 is a prime.

Together with 20161151, it forms a pair of twin primes.

It is a self number, because there is not a number n which added to its sum of digits gives 20161153.

It is not a weakly prime, because it can be changed into another prime (20161151) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 10080576 + 10080577.

It is an arithmetic number, because the mean of its divisors is an integer number (10080577).

Almost surely, 2^20161153 is an apocalyptic number.

It is an amenable number.

20161153 is a deficient number, since it is larger than the sum of its proper divisors (1).

20161153 is an equidigital number, since it uses as much as digits as its factorization.

20161153 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 180, while the sum is 19.

The square root of 20161153 is about 4490.1172590479. The cubic root of 20161153 is about 272.1688731095.

Adding to 20161153 its reverse (35116102), we get a palindrome (55277255).

The spelling of 20161153 in words is "twenty million, one hundred sixty-one thousand, one hundred fifty-three".