123387229 has 4 divisors (see below), whose sum is σ = 141013984. Its totient is φ = 105760476.

The previous prime is 123387227. The next prime is 123387259. The reversal of 123387229 is 922783321.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is not a de Polignac number, because 123387229 - 2¹ = 123387227 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (123387221) 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, 8813367 + ... + 8813380.

It is an arithmetic number, because the mean of its divisors is an integer number (35253496).

Almost surely, 2^123387229 is an apocalyptic number.

It is an amenable number.

123387229 is a deficient number, since it is larger than the sum of its proper divisors (17626755).

123387229 is an equidigital number, since it uses as much as digits as its factorization.

123387229 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 17626754.

The product of its digits is 36288, while the sum is 37.

The square root of 123387229 is about 11107.9804195002. The cubic root of 123387229 is about 497.8403236941.

The spelling of 123387229 in words is "one hundred twenty-three million, three hundred eighty-seven thousand, two hundred twenty-nine".