1141404421 has 4 divisors (see below), whose sum is σ = 1157040172. Its totient is φ = 1125768672.

The previous prime is 1141404409. The next prime is 1141404437. The reversal of 1141404421 is 1244041411.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 1244041411 = 23 ⋅54088757.

It can be written as a sum of positive squares in 2 ways, for example, as 721728225 + 419676196 = 26865^2 + 20486^2 .

It is a cyclic number.

It is not a de Polignac number, because 1141404421 - 2¹¹ = 1141402373 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 1141404392 and 1141404401.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1141404721) 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, 7817766 + ... + 7817911.

It is an arithmetic number, because the mean of its divisors is an integer number (289260043).

Almost surely, 2^1141404421 is an apocalyptic number.

It is an amenable number.

1141404421 is a deficient number, since it is larger than the sum of its proper divisors (15635751).

1141404421 is an equidigital number, since it uses as much as digits as its factorization.

1141404421 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 15635750.

The product of its (nonzero) digits is 512, while the sum is 22.

The square root of 1141404421 is about 33784.6773108757. The cubic root of 1141404421 is about 1045.0727331991.

Adding to 1141404421 its reverse (1244041411), we get a palindrome (2385445832).

The spelling of 1141404421 in words is "one billion, one hundred forty-one million, four hundred four thousand, four hundred twenty-one".