123281347 has 8 divisors (see below), whose sum is σ = 142877952. Its totient is φ = 104181000.

The previous prime is 123281341. The next prime is 123281359. The reversal of 123281347 is 743182321.

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

It is a de Polignac number, because none of the positive numbers 2^k-123281347 is a prime.

It is not an unprimeable number, because it can be changed into a prime (123281341) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 123529 + ... + 124522.

It is an arithmetic number, because the mean of its divisors is an integer number (17859744).

Almost surely, 2^123281347 is an apocalyptic number.

123281347 is a deficient number, since it is larger than the sum of its proper divisors (19596605).

123281347 is an equidigital number, since it uses as much as digits as its factorization.

123281347 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 248129.

The product of its digits is 8064, while the sum is 31.

The square root of 123281347 is about 11103.2133637069. The cubic root of 123281347 is about 497.6978794159.

The spelling of 123281347 in words is "one hundred twenty-three million, two hundred eighty-one thousand, three hundred forty-seven".