19484145 has 20 divisors (see below), whose sum is σ = 34927860. Its totient is φ = 10391328.

The previous prime is 19484141. The next prime is 19484149. The reversal of 19484145 is 54148491.

It is an interprime number because it is at equal distance from previous prime (19484141) and next prime (19484149).

It can be written as a sum of positive squares in 2 ways, for example, as 8928144 + 10556001 = 2988^2 + 3249^2 .

It is not a de Polignac number, because 19484145 - 2² = 19484141 is a prime.

It is a Curzon number.

It is not an unprimeable number, because it can be changed into a prime (19484141) 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 19 ways as a sum of consecutive naturals, for example, 23650 + ... + 24459.

It is an arithmetic number, because the mean of its divisors is an integer number (1746393).

Almost surely, 2^19484145 is an apocalyptic number.

19484145 is a gapful number since it is divisible by the number (15) formed by its first and last digit.

It is an amenable number.

19484145 is a deficient number, since it is larger than the sum of its proper divisors (15443715).

19484145 is an equidigital number, since it uses as much as digits as its factorization.

19484145 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 48126 (or 48117 counting only the distinct ones).

The product of its digits is 23040, while the sum is 36.

The square root of 19484145 is about 4414.0848428638. The cubic root of 19484145 is about 269.0876613918.

The spelling of 19484145 in words is "nineteen million, four hundred eighty-four thousand, one hundred forty-five".