2543126419 has 2 divisors, whose sum is σ = 2543126420. Its totient is φ = 2543126418.

The previous prime is 2543126329. The next prime is 2543126461. The reversal of 2543126419 is 9146213452.

It is a happy number.

2543126419 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 2543126419 - 2¹⁷ = 2542995347 is a prime.

It is a super-2 number, since 2×2543126419² = 12934983966031527122, which contains 22 as substring.

It is not a weakly prime, because it can be changed into another prime (2543126519) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 1271563209 + 1271563210.

It is an arithmetic number, because the mean of its divisors is an integer number (1271563210).

Almost surely, 2^2543126419 is an apocalyptic number.

2543126419 is a deficient number, since it is larger than the sum of its proper divisors (1).

2543126419 is an equidigital number, since it uses as much as digits as its factorization.

2543126419 is an evil number, because the sum of its binary digits is even.

The product of its digits is 51840, while the sum is 37.

The square root of 2543126419 is about 50429.4201731489. The cubic root of 2543126419 is about 1364.9685652482.

The spelling of 2543126419 in words is "two billion, five hundred forty-three million, one hundred twenty-six thousand, four hundred nineteen".