2543212613 has 2 divisors, whose sum is σ = 2543212614. Its totient is φ = 2543212612.

The previous prime is 2543212589. The next prime is 2543212697. The reversal of 2543212613 is 3162123452.

It is a happy number.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 1651772164 + 891440449 = 40642^2 + 29857^2 .

It is a cyclic number.

It is not a de Polignac number, because 2543212613 - 2²² = 2539018309 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (2543212513) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 1271606306 + 1271606307.

It is an arithmetic number, because the mean of its divisors is an integer number (1271606307).

Almost surely, 2^2543212613 is an apocalyptic number.

It is an amenable number.

2543212613 is a deficient number, since it is larger than the sum of its proper divisors (1).

2543212613 is an equidigital number, since it uses as much as digits as its factorization.

2543212613 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 8640, while the sum is 29.

The square root of 2543212613 is about 50430.2747662552. The cubic root of 2543212613 is about 1364.9839860009.

The spelling of 2543212613 in words is "two billion, five hundred forty-three million, two hundred twelve thousand, six hundred thirteen".