226123857 has 6 divisors (see below), whose sum is σ = 326623362. Its totient is φ = 150749232.

The previous prime is 226123841. The next prime is 226123867. The reversal of 226123857 is 758321622.

226123857 is a `hidden beast` number, since 2 + 2 + 612 + 38 + 5 + 7 = 666.

It can be written as a sum of positive squares in only one way, i.e., 225270081 + 853776 = 15009^2 + 924^2 .

It is not a de Polignac number, because 226123857 - 2⁴ = 226123841 is a prime.

It is a super-2 number, since 2×226123857² = 102263997409112898, which contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (226123867) 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 5 ways as a sum of consecutive naturals, for example, 12562428 + ... + 12562445.

It is an arithmetic number, because the mean of its divisors is an integer number (54437227).

Almost surely, 2^226123857 is an apocalyptic number.

It is an amenable number.

226123857 is a deficient number, since it is larger than the sum of its proper divisors (100499505).

226123857 is a wasteful number, since it uses less digits than its factorization.

226123857 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 25124879 (or 25124876 counting only the distinct ones).

The product of its digits is 40320, while the sum is 36.

The square root of 226123857 is about 15037.4152366688. The cubic root of 226123857 is about 609.2311885644.

The spelling of 226123857 in words is "two hundred twenty-six million, one hundred twenty-three thousand, eight hundred fifty-seven".