2141254109 has 2 divisors, whose sum is σ = 2141254110. Its totient is φ = 2141254108.

The previous prime is 2141254099. The next prime is 2141254111. The reversal of 2141254109 is 9014521412.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 1832268025 + 308986084 = 42805^2 + 17578^2 .

It is a cyclic number.

It is not a de Polignac number, because 2141254109 - 2²⁰ = 2140205533 is a prime.

Together with 2141254111, it forms a pair of twin primes.

It is a Chen prime.

It is an alternating number because its digits alternate between even and odd.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (2141254009) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 1070627054 + 1070627055.

It is an arithmetic number, because the mean of its divisors is an integer number (1070627055).

Almost surely, 2^2141254109 is an apocalyptic number.

It is an amenable number.

2141254109 is a deficient number, since it is larger than the sum of its proper divisors (1).

2141254109 is an equidigital number, since it uses as much as digits as its factorization.

2141254109 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 2880, while the sum is 29.

The square root of 2141254109 is about 46273.6870046034. The cubic root of 2141254109 is about 1288.9104252416.

The spelling of 2141254109 in words is "two billion, one hundred forty-one million, two hundred fifty-four thousand, one hundred nine".