126228405 has 16 divisors (see below), whose sum is σ = 202572864. Its totient is φ = 67119360.

The previous prime is 126228391. The next prime is 126228407. The reversal of 126228405 is 504822621.

It is not a de Polignac number, because 126228405 - 2¹² = 126224309 is a prime.

It is a super-2 number, since 2×126228405² = 31867220457688050, which contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (126228407) 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, 7431 + ... + 17540.

It is an arithmetic number, because the mean of its divisors is an integer number (12660804).

Almost surely, 2^126228405 is an apocalyptic number.

126228405 is a gapful number since it is divisible by the number (15) formed by its first and last digit.

It is an amenable number.

126228405 is a deficient number, since it is larger than the sum of its proper divisors (76344459).

126228405 is a wasteful number, since it uses less digits than its factorization.

126228405 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 25316.

The product of its (nonzero) digits is 7680, while the sum is 30.

The square root of 126228405 is about 11235.1415211380. The cubic root of 126228405 is about 501.6325371767.

The spelling of 126228405 in words is "one hundred twenty-six million, two hundred twenty-eight thousand, four hundred five".