126506199 has 16 divisors (see below), whose sum is σ = 177984000. Its totient is φ = 79704576.

The previous prime is 126506189. The next prime is 126506201. The reversal of 126506199 is 991605621.

It is not a de Polignac number, because 126506199 - 2⁴ = 126506183 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (126506119) 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, 23122 + ... + 28064.

It is an arithmetic number, because the mean of its divisors is an integer number (11124000).

Almost surely, 2^126506199 is an apocalyptic number.

126506199 is a gapful number since it is divisible by the number (19) formed by its first and last digit.

126506199 is a deficient number, since it is larger than the sum of its proper divisors (51477801).

126506199 is a wasteful number, since it uses less digits than its factorization.

126506199 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 5414.

The product of its (nonzero) digits is 29160, while the sum is 39.

The square root of 126506199 is about 11247.4974549897. The cubic root of 126506199 is about 502.0002526414. Note that the first 3 decimals are identical.

The spelling of 126506199 in words is "one hundred twenty-six million, five hundred six thousand, one hundred ninety-nine".