126880005 has 32 divisors (see below), whose sum is σ = 244224000. Its totient is φ = 54948672.

The previous prime is 126880003. The next prime is 126880049. The reversal of 126880005 is 500088621.

It is not a de Polignac number, because 126880005 - 2¹ = 126880003 is a prime.

It is a Curzon number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (126880001) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 29805 + ... + 33794.

It is an arithmetic number, because the mean of its divisors is an integer number (7632000).

Almost surely, 2^126880005 is an apocalyptic number.

126880005 is a gapful number since it is divisible by the number (15) formed by its first and last digit.

It is an amenable number.

126880005 is a deficient number, since it is larger than the sum of its proper divisors (117343995).

126880005 is a wasteful number, since it uses less digits than its factorization.

126880005 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 63633.

The product of its (nonzero) digits is 3840, while the sum is 30.

The square root of 126880005 is about 11264.1024942070. The cubic root of 126880005 is about 502.4942104726.

The spelling of 126880005 in words is "one hundred twenty-six million, eight hundred eighty thousand, five".