19141121 has 4 divisors (see below), whose sum is σ = 19177044. Its totient is φ = 19105200.

The previous prime is 19141091. The next prime is 19141127. The reversal of 19141121 is 12114191.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in 2 ways, for example, as 12567025 + 6574096 = 3545^2 + 2564^2 .

It is a cyclic number.

It is not a de Polignac number, because 19141121 - 2¹⁰ = 19140097 is a prime.

It is a Duffinian number.

It is a Curzon number.

It is a junction number, because it is equal to n+sod(n) for n = 19141093 and 19141102.

It is not an unprimeable number, because it can be changed into a prime (19141127) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 17150 + ... + 18231.

It is an arithmetic number, because the mean of its divisors is an integer number (4794261).

Almost surely, 2^19141121 is an apocalyptic number.

It is an amenable number.

19141121 is a deficient number, since it is larger than the sum of its proper divisors (35923).

19141121 is an equidigital number, since it uses as much as digits as its factorization.

19141121 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 35922.

The product of its digits is 72, while the sum is 20.

The square root of 19141121 is about 4375.0566853471. The cubic root of 19141121 is about 267.4991807120.

The spelling of 19141121 in words is "nineteen million, one hundred forty-one thousand, one hundred twenty-one".