19968153 has 8 divisors (see below), whose sum is σ = 27542400. Its totient is φ = 12853008.

The previous prime is 19968127. The next prime is 19968173. The reversal of 19968153 is 35186991.

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

It is a de Polignac number, because none of the positive numbers 2^k-19968153 is a prime.

It is a Smith number, since the sum of its digits (42) coincides with the sum of the digits of its prime factors. Since it is squarefree, it is also a hoax number.

It is a Curzon number.

It is not an unprimeable number, because it can be changed into a prime (19968173) 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, 114673 + ... + 114846.

It is an arithmetic number, because the mean of its divisors is an integer number (3442800).

Almost surely, 2^19968153 is an apocalyptic number.

It is an amenable number.

19968153 is a deficient number, since it is larger than the sum of its proper divisors (7574247).

19968153 is a wasteful number, since it uses less digits than its factorization.

19968153 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 229551.

The product of its digits is 58320, while the sum is 42.

The square root of 19968153 is about 4468.5739335945. The cubic root of 19968153 is about 271.2976083552.

The spelling of 19968153 in words is "nineteen million, nine hundred sixty-eight thousand, one hundred fifty-three".