126489605 has 16 divisors (see below), whose sum is σ = 175328064. Its totient is φ = 86580480.

The previous prime is 126489599. The next prime is 126489607. The reversal of 126489605 is 506984621.

It is a happy number.

It is not a de Polignac number, because 126489605 - 2⁴ = 126489589 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (126489607) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 66707 + ... + 68576.

It is an arithmetic number, because the mean of its divisors is an integer number (10958004).

Almost surely, 2^126489605 is an apocalyptic number.

It is an amenable number.

126489605 is a deficient number, since it is larger than the sum of its proper divisors (48838459).

126489605 is a wasteful number, since it uses less digits than its factorization.

126489605 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 135316.

The product of its (nonzero) digits is 103680, while the sum is 41.

The square root of 126489605 is about 11246.7597555918. The cubic root of 126489605 is about 501.9783023166.

The spelling of 126489605 in words is "one hundred twenty-six million, four hundred eighty-nine thousand, six hundred five".