19133081 has 8 divisors (see below), whose sum is σ = 21159264. Its totient is φ = 17154720.

The previous prime is 19133071. The next prime is 19133087. The reversal of 19133081 is 18033191.

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

It is not a de Polignac number, because 19133081 - 2⁶ = 19133017 is a prime.

It is a super-2 number, since 2×19133081² = 732149577105122, which contains 22 as substring.

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 19133081.

It is not an unprimeable number, because it can be changed into a prime (19133087) 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, 11111 + ... + 12716.

It is an arithmetic number, because the mean of its divisors is an integer number (2644908).

Almost surely, 2^19133081 is an apocalyptic number.

19133081 is a gapful number since it is divisible by the number (11) formed by its first and last digit.

It is an amenable number.

19133081 is a deficient number, since it is larger than the sum of its proper divisors (2026183).

19133081 is a wasteful number, since it uses less digits than its factorization.

19133081 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 23911.

The product of its (nonzero) digits is 648, while the sum is 26.

The square root of 19133081 is about 4374.1377436016. The cubic root of 19133081 is about 267.4617221847.

It can be divided in two parts, 1913 and 3081, that added together give a palindrome (4994).

The spelling of 19133081 in words is "nineteen million, one hundred thirty-three thousand, eighty-one".