126505010 has 8 divisors (see below), whose sum is σ = 227709036. Its totient is φ = 50602000.

The previous prime is 126505009. The next prime is 126505019. The reversal of 126505010 is 10505621.

It can be written as a sum of positive squares in 2 ways, for example, as 112763161 + 13741849 = 10619^2 + 3707^2 .

It is a sphenic number, since it is the product of 3 distinct primes.

It is not an unprimeable number, because it can be changed into a prime (126505019) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 6325241 + ... + 6325260.

Almost surely, 2^126505010 is an apocalyptic number.

126505010 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

126505010 is a deficient number, since it is larger than the sum of its proper divisors (101204026).

126505010 is a wasteful number, since it uses less digits than its factorization.

126505010 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 12650508.

The product of its (nonzero) digits is 300, while the sum is 20.

The square root of 126505010 is about 11247.4445986633. Note that the first 3 decimals coincide. The cubic root of 126505010 is about 501.9986799117.

The spelling of 126505010 in words is "one hundred twenty-six million, five hundred five thousand, ten".