126306905 has 16 divisors (see below), whose sum is σ = 156686400. Its totient is φ = 97690560.

The previous prime is 126306893. The next prime is 126306949. The reversal of 126306905 is 509603621.

It is a happy number.

It is not a de Polignac number, because 126306905 - 2⁶ = 126306841 is a prime.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 14486 + ... + 21504.

It is an arithmetic number, because the mean of its divisors is an integer number (9792900).

Almost surely, 2^126306905 is an apocalyptic number.

It is an amenable number.

126306905 is a deficient number, since it is larger than the sum of its proper divisors (30379495).

126306905 is an equidigital number, since it uses as much as digits as its factorization.

126306905 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 7144.

The product of its (nonzero) digits is 9720, while the sum is 32.

The square root of 126306905 is about 11238.6344811102. The cubic root of 126306905 is about 501.7365021389.

The spelling of 126306905 in words is "one hundred twenty-six million, three hundred six thousand, nine hundred five".