123356147 has 4 divisors (see below), whose sum is σ = 123506136. Its totient is φ = 123206160.

The previous prime is 123356141. The next prime is 123356159. The reversal of 123356147 is 741653321.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 123356147 - 2¹⁰ = 123355123 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (123356141) 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, 73754 + ... + 75407.

It is an arithmetic number, because the mean of its divisors is an integer number (30876534).

Almost surely, 2^123356147 is an apocalyptic number.

123356147 is a deficient number, since it is larger than the sum of its proper divisors (149989).

123356147 is an equidigital number, since it uses as much as digits as its factorization.

123356147 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 149988.

The product of its digits is 15120, while the sum is 32.

The square root of 123356147 is about 11106.5812471705. The cubic root of 123356147 is about 497.7985171728.

The spelling of 123356147 in words is "one hundred twenty-three million, three hundred fifty-six thousand, one hundred forty-seven".