126343505 has 8 divisors (see below), whose sum is σ = 154098024. Its totient is φ = 99417600.

The previous prime is 126343489. The next prime is 126343543. The reversal of 126343505 is 505343621.

It can be written as a sum of positive squares in 4 ways, for example, as 163216 + 126180289 = 404^2 + 11233^2 .

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

It is not a de Polignac number, because 126343505 - 2⁴ = 126343489 is a prime.

It is a Duffinian number.

It is a Curzon number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 206816 + ... + 207425.

It is an arithmetic number, because the mean of its divisors is an integer number (19262253).

Almost surely, 2^126343505 is an apocalyptic number.

It is an amenable number.

126343505 is a deficient number, since it is larger than the sum of its proper divisors (27754519).

126343505 is an equidigital number, since it uses as much as digits as its factorization.

126343505 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 414307.

The product of its (nonzero) digits is 10800, while the sum is 29.

The square root of 126343505 is about 11240.2626748666. The cubic root of 126343505 is about 501.7849602511.

The spelling of 126343505 in words is "one hundred twenty-six million, three hundred forty-three thousand, five hundred five".