19040141 has 4 divisors (see below), whose sum is σ = 19308384. Its totient is φ = 18771900.

The previous prime is 19040137. The next prime is 19040143. The reversal of 19040141 is 14104091.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is not a de Polignac number, because 19040141 - 2² = 19040137 is a prime.

It is a Duffinian number.

It is a Curzon number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (19040143) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 134015 + ... + 134156.

It is an arithmetic number, because the mean of its divisors is an integer number (4827096).

Almost surely, 2^19040141 is an apocalyptic number.

It is an amenable number.

19040141 is a deficient number, since it is larger than the sum of its proper divisors (268243).

19040141 is an equidigital number, since it uses as much as digits as its factorization.

19040141 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 268242.

The product of its (nonzero) digits is 144, while the sum is 20.

The square root of 19040141 is about 4363.5010026354. The cubic root of 19040141 is about 267.0279490257.

The spelling of 19040141 in words is "nineteen million, forty thousand, one hundred forty-one".