126445505103 has 24 divisors (see below), whose sum is σ = 183027608400. Its totient is φ = 84119865984.

The previous prime is 126445505093. The next prime is 126445505119. The reversal of 126445505103 is 301505544621.

126445505103 is a `hidden beast` number, since 1 + 2 + 6 + 4 + 45 + 505 + 103 = 666.

It is not a de Polignac number, because 126445505103 - 2²² = 126441310799 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (126445505003) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 15199101 + ... + 15207417.

It is an arithmetic number, because the mean of its divisors is an integer number (7626150350).

Almost surely, 2^126445505103 is an apocalyptic number.

126445505103 is a deficient number, since it is larger than the sum of its proper divisors (56582103297).

126445505103 is a wasteful number, since it uses less digits than its factorization.

126445505103 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 11671 (or 11668 counting only the distinct ones).

The product of its (nonzero) digits is 72000, while the sum is 36.

The spelling of 126445505103 in words is "one hundred twenty-six billion, four hundred forty-five million, five hundred five thousand, one hundred three".