2141134409 has 4 divisors (see below), whose sum is σ = 2214966660. Its totient is φ = 2067302160.

The previous prime is 2141134403. The next prime is 2141134417. The reversal of 2141134409 is 9044311412.

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 862714384 + 1278420025 = 29372^2 + 35755^2 .

It is a cyclic number.

It is not a de Polignac number, because 2141134409 - 2⁸ = 2141134153 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (29), and also a Moran number because the ratio is a prime number: 73832221 = 2141134409 / (2 + 1 + 4 + 1 + 1 + 3 + 4 + 4 + 0 + 9).

It is a Duffinian number.

It is a Curzon number.

It is not an unprimeable number, because it can be changed into a prime (2141134403) 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, 36916082 + ... + 36916139.

It is an arithmetic number, because the mean of its divisors is an integer number (553741665).

Almost surely, 2^2141134409 is an apocalyptic number.

2141134409 is a gapful number since it is divisible by the number (29) formed by its first and last digit.

It is an amenable number.

2141134409 is a deficient number, since it is larger than the sum of its proper divisors (73832251).

2141134409 is an equidigital number, since it uses as much as digits as its factorization.

2141134409 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 73832250.

The product of its (nonzero) digits is 3456, while the sum is 29.

The square root of 2141134409 is about 46272.3935948855. The cubic root of 2141134409 is about 1288.8864073148.

The spelling of 2141134409 in words is "two billion, one hundred forty-one million, one hundred thirty-four thousand, four hundred nine".