19006113 has 8 divisors (see below), whose sum is σ = 28961728. Its totient is φ = 10860624.

The previous prime is 19006111. The next prime is 19006121. The reversal of 19006113 is 31160091.

It is a happy number.

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

It is not a de Polignac number, because 19006113 - 2¹ = 19006111 is a prime.

It is a super-2 number, since 2×19006113² = 722464662737538, which contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (21), and also a Moran number because the ratio is a prime number: 905053 = 19006113 / (1 + 9 + 0 + 0 + 6 + 1 + 1 + 3).

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 19006113.

It is not an unprimeable number, because it can be changed into a prime (19006111) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (7) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 452506 + ... + 452547.

It is an arithmetic number, because the mean of its divisors is an integer number (3620216).

Almost surely, 2^19006113 is an apocalyptic number.

It is an amenable number.

19006113 is a deficient number, since it is larger than the sum of its proper divisors (9955615).

19006113 is an equidigital number, since it uses as much as digits as its factorization.

19006113 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 905063.

The product of its (nonzero) digits is 162, while the sum is 21.

The square root of 19006113 is about 4359.6000963391. The cubic root of 19006113 is about 266.8687792410.

The spelling of 19006113 in words is "nineteen million, six thousand, one hundred thirteen".