126834233551 has 4 divisors (see below), whose sum is σ = 126836725912. Its totient is φ = 126831741192.

The previous prime is 126834233549. The next prime is 126834233567. The reversal of 126834233551 is 155332438621.

It is a happy number.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 155332438621 = 167 ⋅930134363.

It is a cyclic number.

It is not a de Polignac number, because 126834233551 - 2¹ = 126834233549 is a prime.

It is a super-2 number, since 2×126834233551² (a number of 23 digits) contains 22 as substring.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 126834233498 and 126834233507.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (126834233501) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 1168221 + ... + 1272166.

It is an arithmetic number, because the mean of its divisors is an integer number (31709181478).

Almost surely, 2^126834233551 is an apocalyptic number.

126834233551 is a deficient number, since it is larger than the sum of its proper divisors (2492361).

126834233551 is an equidigital number, since it uses as much as digits as its factorization.

126834233551 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2492360.

The product of its digits is 518400, while the sum is 43.

The spelling of 126834233551 in words is "one hundred twenty-six billion, eight hundred thirty-four million, two hundred thirty-three thousand, five hundred fifty-one".