123226357 has 2 divisors, whose sum is σ = 123226358. Its totient is φ = 123226356.

The previous prime is 123226331. The next prime is 123226373. The reversal of 123226357 is 753622321.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 92910321 + 30316036 = 9639^2 + 5506^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-123226357 is a prime.

It is a Chen prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (123226757) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 61613178 + 61613179.

It is an arithmetic number, because the mean of its divisors is an integer number (61613179).

Almost surely, 2^123226357 is an apocalyptic number.

It is an amenable number.

123226357 is a deficient number, since it is larger than the sum of its proper divisors (1).

123226357 is an equidigital number, since it uses as much as digits as its factorization.

123226357 is an evil number, because the sum of its binary digits is even.

The product of its digits is 15120, while the sum is 31.

The square root of 123226357 is about 11100.7367773495. The cubic root of 123226357 is about 497.6238685529.

Adding to 123226357 its reverse (753622321), we get a palindrome (876848678).

The spelling of 123226357 in words is "one hundred twenty-three million, two hundred twenty-six thousand, three hundred fifty-seven".