123891226 has 8 divisors (see below), whose sum is σ = 186635124. Its totient is φ = 61679520.

The previous prime is 123891211. The next prime is 123891227. The reversal of 123891226 is 622198321.

It can be written as a sum of positive squares in 2 ways, for example, as 104960025 + 18931201 = 10245^2 + 4351^2 .

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

It is a junction number, because it is equal to n+sod(n) for n = 123891191 and 123891200.

It is not an unprimeable number, because it can be changed into a prime (123891227) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 132465 + ... + 133396.

Almost surely, 2^123891226 is an apocalyptic number.

123891226 is a deficient number, since it is larger than the sum of its proper divisors (62743898).

123891226 is a wasteful number, since it uses less digits than its factorization.

123891226 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 266096.

The product of its digits is 10368, while the sum is 34.

The square root of 123891226 is about 11130.6435573151. The cubic root of 123891226 is about 498.5172418699.

The spelling of 123891226 in words is "one hundred twenty-three million, eight hundred ninety-one thousand, two hundred twenty-six".