126505506541 has 8 divisors (see below), whose sum is σ = 128197359360. Its totient is φ = 124823694912.

The previous prime is 126505506539. The next prime is 126505506559. The reversal of 126505506541 is 145605505621.

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 126505506541 - 2¹ = 126505506539 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 126505506494 and 126505506503.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (126505536541) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 2484931 + ... + 2535328.

It is an arithmetic number, because the mean of its divisors is an integer number (16024669920).

Almost surely, 2^126505506541 is an apocalyptic number.

It is an amenable number.

126505506541 is a deficient number, since it is larger than the sum of its proper divisors (1691852819).

126505506541 is a wasteful number, since it uses less digits than its factorization.

126505506541 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 5020595.

The product of its (nonzero) digits is 180000, while the sum is 40.

The spelling of 126505506541 in words is "one hundred twenty-six billion, five hundred five million, five hundred six thousand, five hundred forty-one".