19842153 has 8 divisors (see below), whose sum is σ = 26619168. Its totient is φ = 13146624.

The previous prime is 19842149. The next prime is 19842161. The reversal of 19842153 is 35124891.

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

It is not a de Polignac number, because 19842153 - 2² = 19842149 is a prime.

It is a super-2 number, since 2×19842153² = 787422071350818, which contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (19842143) 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, 19800 + ... + 20777.

It is an arithmetic number, because the mean of its divisors is an integer number (3327396).

Almost surely, 2^19842153 is an apocalyptic number.

It is an amenable number.

19842153 is a deficient number, since it is larger than the sum of its proper divisors (6777015).

19842153 is a wasteful number, since it uses less digits than its factorization.

19842153 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 40743.

The product of its digits is 8640, while the sum is 33.

The square root of 19842153 is about 4454.4531650922. The cubic root of 19842153 is about 270.7257702620.

The spelling of 19842153 in words is "nineteen million, eight hundred forty-two thousand, one hundred fifty-three".