126228261 has 8 divisors (see below), whose sum is σ = 168361120. Its totient is φ = 84123792.

The previous prime is 126228257. The next prime is 126228293. The reversal of 126228261 is 162822621.

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

It is not a de Polignac number, because 126228261 - 2² = 126228257 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (126228241) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 7671 + ... + 17643.

It is an arithmetic number, because the mean of its divisors is an integer number (21045140).

Almost surely, 2^126228261 is an apocalyptic number.

It is an amenable number.

126228261 is a deficient number, since it is larger than the sum of its proper divisors (42132859).

126228261 is an equidigital number, since it uses as much as digits as its factorization.

126228261 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 14195.

The product of its digits is 4608, while the sum is 30.

The square root of 126228261 is about 11235.1351126722. The cubic root of 126228261 is about 501.6323464243.

The spelling of 126228261 in words is "one hundred twenty-six million, two hundred twenty-eight thousand, two hundred sixty-one".