123009471 has 24 divisors (see below), whose sum is σ = 196022736. Its totient is φ = 73848960.

The previous prime is 123009463. The next prime is 123009487. The reversal of 123009471 is 174900321.

It is not a de Polignac number, because 123009471 - 2³ = 123009463 is a prime.

It is a super-3 number, since 3×123009471³ (a number of 25 digits) contains 333 as substring.

123009471 is a modest number, since divided by 9471 gives 123 as remainder.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (123009421) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 8025 + ... + 17618.

It is an arithmetic number, because the mean of its divisors is an integer number (8167614).

Almost surely, 2^123009471 is an apocalyptic number.

123009471 is a deficient number, since it is larger than the sum of its proper divisors (73013265).

123009471 is a wasteful number, since it uses less digits than its factorization.

123009471 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 25703 (or 25700 counting only the distinct ones).

The product of its (nonzero) digits is 1512, while the sum is 27.

The square root of 123009471 is about 11090.9634838458. The cubic root of 123009471 is about 497.3317475198.

Adding to 123009471 its reverse (174900321), we get a palindrome (297909792).

The spelling of 123009471 in words is "one hundred twenty-three million, nine thousand, four hundred seventy-one".