126843534801 has 9 divisors (see below), whose sum is σ = 183219982491. Its totient is φ = 84561644232.

The previous prime is 126843534781. The next prime is 126843534827. The reversal of 126843534801 is 108435348621.

The square root of 126843534801 is 356151.

It is a perfect power (a square), and thus also a powerful number.

126843534801 is a `hidden beast` number, since 1 + 268 + 43 + 5 + 348 + 0 + 1 = 666.

It can be written as a sum of positive squares in only one way, i.e., 4676508225 + 122167026576 = 68385^2 + 349524^2 .

It is a tau number, because it is divible by the number of its divisors (9).

It is not a de Polignac number, because 126843534801 - 2¹³ = 126843526609 is a prime.

It is not an unprimeable number, because it can be changed into a prime (126843534901) by changing a digit.

It is a polite number, since it can be written in 8 ways as a sum of consecutive naturals, for example, 1009095 + ... + 1127811.

Almost surely, 2^126843534801 is an apocalyptic number.

126843534801 is the 356151-st square number.

126843534801 is the 178076-th centered octagonal number.

It is an amenable number.

126843534801 is a deficient number, since it is larger than the sum of its proper divisors (56376447690).

126843534801 is an frugal number, since it uses more digits than its factorization.

126843534801 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 237440 (or 118720 counting only the distinct ones).

The product of its (nonzero) digits is 552960, while the sum is 45.

The spelling of 126843534801 in words is "one hundred twenty-six billion, eight hundred forty-three million, five hundred thirty-four thousand, eight hundred one".