126228389 has 8 divisors (see below), whose sum is σ = 144439680. Its totient is φ = 108061776.

The previous prime is 126228379. The next prime is 126228391. The reversal of 126228389 is 983822621.

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

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-126228389 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (126228379) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 4874 + ... + 16619.

It is an arithmetic number, because the mean of its divisors is an integer number (18054960).

Almost surely, 2^126228389 is an apocalyptic number.

It is an amenable number.

126228389 is a deficient number, since it is larger than the sum of its proper divisors (18211291).

126228389 is an equidigital number, since it uses as much as digits as its factorization.

126228389 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 22339.

The product of its digits is 82944, while the sum is 41.

The square root of 126228389 is about 11235.1408090865. The cubic root of 126228389 is about 501.6325159820.

The spelling of 126228389 in words is "one hundred twenty-six million, two hundred twenty-eight thousand, three hundred eighty-nine".