126259455257 has 8 divisors (see below), whose sum is σ = 136565487240. Its totient is φ = 116038247040.

The previous prime is 126259455221. The next prime is 126259455281. The reversal of 126259455257 is 752554952621.

It can be written as a sum of positive squares in 4 ways, for example, as 23206256896 + 103053198361 = 152336^2 + 321019^2 .

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 126259455257 - 2¹⁴ = 126259438873 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 126259455199 and 126259455208.

It is not an unprimeable number, because it can be changed into a prime (126259455457) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 21202844 + ... + 21208797.

It is an arithmetic number, because the mean of its divisors is an integer number (17070685905).

Almost surely, 2^126259455257 is an apocalyptic number.

It is an amenable number.

126259455257 is a deficient number, since it is larger than the sum of its proper divisors (10306031983).

126259455257 is a wasteful number, since it uses less digits than its factorization.

126259455257 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 42411883.

The product of its digits is 7560000, while the sum is 53.

The spelling of 126259455257 in words is "one hundred twenty-six billion, two hundred fifty-nine million, four hundred fifty-five thousand, two hundred fifty-seven".