2141154305 has 4 divisors (see below), whose sum is σ = 2569385172. Its totient is φ = 1712923440.

The previous prime is 2141154299. The next prime is 2141154307. The reversal of 2141154305 is 5034511412.

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 931714576 + 1209439729 = 30524^2 + 34777^2 .

It is not a de Polignac number, because 2141154305 - 2¹⁶ = 2141088769 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (2141154307) 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, 214115426 + ... + 214115435.

It is an arithmetic number, because the mean of its divisors is an integer number (642346293).

Almost surely, 2^2141154305 is an apocalyptic number.

It is an amenable number.

2141154305 is a deficient number, since it is larger than the sum of its proper divisors (428230867).

2141154305 is an equidigital number, since it uses as much as digits as its factorization.

2141154305 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 428230866.

The product of its (nonzero) digits is 2400, while the sum is 26.

The square root of 2141154305 is about 46272.6085821839. The cubic root of 2141154305 is about 1288.8903995295.

Adding to 2141154305 its reverse (5034511412), we get a palindrome (7175665717).

The spelling of 2141154305 in words is "two billion, one hundred forty-one million, one hundred fifty-four thousand, three hundred five".