5126666231 has 2 divisors, whose sum is σ = 5126666232. Its totient is φ = 5126666230.

The previous prime is 5126666221. The next prime is 5126666243. The reversal of 5126666231 is 1326666215.

It is a happy number.

It is a weak prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-5126666231 is a prime.

It is a super-2 number, since 2×5126666231² = 52565413288151490722, which contains 22 as substring.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (5126666201) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 2563333115 + 2563333116.

It is an arithmetic number, because the mean of its divisors is an integer number (2563333116).

Almost surely, 2^5126666231 is an apocalyptic number.

5126666231 is a deficient number, since it is larger than the sum of its proper divisors (1).

5126666231 is an equidigital number, since it uses as much as digits as its factorization.

5126666231 is an evil number, because the sum of its binary digits is even.

The product of its digits is 77760, while the sum is 38.

The square root of 5126666231 is about 71600.7418327492. The cubic root of 5126666231 is about 1724.2954463349.

The spelling of 5126666231 in words is "five billion, one hundred twenty-six million, six hundred sixty-six thousand, two hundred thirty-one".