126417109 has 16 divisors (see below), whose sum is σ = 158771200. Its totient is φ = 100018800.

The previous prime is 126417103. The next prime is 126417121. The reversal of 126417109 is 901714621.

It is not a de Polignac number, because 126417109 - 2⁵ = 126417077 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (126417103) 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, 9717 + ... + 18634.

It is an arithmetic number, because the mean of its divisors is an integer number (9923200).

Almost surely, 2^126417109 is an apocalyptic number.

It is an amenable number.

126417109 is a deficient number, since it is larger than the sum of its proper divisors (32354091).

126417109 is an equidigital number, since it uses as much as digits as its factorization.

126417109 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 28385 (or 28371 counting only the distinct ones).

The product of its (nonzero) digits is 3024, while the sum is 31.

The square root of 126417109 is about 11243.5363209268. The cubic root of 126417109 is about 501.8823830415.

The spelling of 126417109 in words is "one hundred twenty-six million, four hundred seventeen thousand, one hundred nine".