19001113 has 8 divisors (see below), whose sum is σ = 19467648. Its totient is φ = 18537264.

The previous prime is 19001089. The next prime is 19001153. The reversal of 19001113 is 31110091.

It is a happy number.

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

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-19001113 is a prime.

It is a super-2 number, since 2×19001113² = 722084590477538, which contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (19001153) 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 7 ways as a sum of consecutive naturals, for example, 24195 + ... + 24967.

It is an arithmetic number, because the mean of its divisors is an integer number (2433456).

Almost surely, 2^19001113 is an apocalyptic number.

It is an amenable number.

19001113 is a deficient number, since it is larger than the sum of its proper divisors (466535).

19001113 is an equidigital number, since it uses as much as digits as its factorization.

19001113 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1343.

The product of its (nonzero) digits is 27, while the sum is 16.

The square root of 19001113 is about 4359.0266115269. The cubic root of 19001113 is about 266.8453751758.

The spelling of 19001113 in words is "nineteen million, one thousand, one hundred thirteen".