6243135853 has 2 divisors, whose sum is σ = 6243135854. Its totient is φ = 6243135852.

The previous prime is 6243135809. The next prime is 6243135889. The reversal of 6243135853 is 3585313426.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 3854174724 + 2388961129 = 62082^2 + 48877^2 .

It is a cyclic number.

It is not a de Polignac number, because 6243135853 - 2¹³ = 6243127661 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (6243135253) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 3121567926 + 3121567927.

It is an arithmetic number, because the mean of its divisors is an integer number (3121567927).

Almost surely, 2^6243135853 is an apocalyptic number.

It is an amenable number.

6243135853 is a deficient number, since it is larger than the sum of its proper divisors (1).

6243135853 is an equidigital number, since it uses as much as digits as its factorization.

6243135853 is an evil number, because the sum of its binary digits is even.

The product of its digits is 259200, while the sum is 40.

The square root of 6243135853 is about 79013.5169005911. The cubic root of 6243135853 is about 1841.3411627350.

The spelling of 6243135853 in words is "six billion, two hundred forty-three million, one hundred thirty-five thousand, eight hundred fifty-three".