123226641 has 12 divisors (see below), whose sum is σ = 179995140. Its totient is φ = 81227520.

The previous prime is 123226639. The next prime is 123226661. The reversal of 123226641 is 146622321.

123226641 is a `hidden beast` number, since 12 + 3 + 2 + 2 + 6 + 641 = 666.

It can be written as a sum of positive squares in 2 ways, for example, as 24800400 + 98426241 = 4980^2 + 9921^2 .

It is not a de Polignac number, because 123226641 - 2¹ = 123226639 is a prime.

It is not an unprimeable number, because it can be changed into a prime (123226661) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 76120 + ... + 77721.

It is an arithmetic number, because the mean of its divisors is an integer number (14999595).

Almost surely, 2^123226641 is an apocalyptic number.

It is an amenable number.

123226641 is a deficient number, since it is larger than the sum of its proper divisors (56768499).

123226641 is a wasteful number, since it uses less digits than its factorization.

123226641 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 153936 (or 153933 counting only the distinct ones).

The product of its digits is 3456, while the sum is 27.

The square root of 123226641 is about 11100.7495692859. The cubic root of 123226641 is about 497.6242508441.

Adding to 123226641 its reverse (146622321), we get a palindrome (269848962).

The spelling of 123226641 in words is "one hundred twenty-three million, two hundred twenty-six thousand, six hundred forty-one".