126365514135223 has 16 divisors (see below), whose sum is σ = 138134075616000. Its totient is φ = 114643765670400.

The previous prime is 126365514135173. The next prime is 126365514135253. The reversal of 126365514135223 is 322531415563621.

It is a cyclic number.

It is not a de Polignac number, because 126365514135223 - 2¹⁷ = 126365514004151 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (126365514135253) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (29) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 174446743 + ... + 175169623.

It is an arithmetic number, because the mean of its divisors is an integer number (8633379726000).

Almost surely, 2^{126365514135223} is an apocalyptic number.

126365514135223 is a deficient number, since it is larger than the sum of its proper divisors (11768561480777).

126365514135223 is a wasteful number, since it uses less digits than its factorization.

126365514135223 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 755238.

The product of its digits is 3888000, while the sum is 49.

Adding to 126365514135223 its reverse (322531415563621), we get a palindrome (448896929698844).

The spelling of 126365514135223 in words is "one hundred twenty-six trillion, three hundred sixty-five billion, five hundred fourteen million, one hundred thirty-five thousand, two hundred twenty-three".