123146507 has 8 divisors (see below), whose sum is σ = 136877040. Its totient is φ = 109838560.

The previous prime is 123146503. The next prime is 123146509. The reversal of 123146507 is 705641321.

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

It is a cyclic number.

It is not a de Polignac number, because 123146507 - 2² = 123146503 is a prime.

It is a super-4 number, since 4×123146507⁴ (a number of 33 digits) contains 4444 as substring.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 123146507.

It is not an unprimeable number, because it can be changed into a prime (123146501) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 105032 + ... + 106197.

It is an arithmetic number, because the mean of its divisors is an integer number (17109630).

Almost surely, 2^123146507 is an apocalyptic number.

123146507 is a deficient number, since it is larger than the sum of its proper divisors (13730533).

123146507 is a wasteful number, since it uses less digits than its factorization.

It is an anagram of its base 8 representation: 123146507 = (725610413)₈.

123146507 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 211293.

The product of its (nonzero) digits is 5040, while the sum is 29.

The square root of 123146507 is about 11097.1395863979. The cubic root of 123146507 is about 497.5163594866.

Adding to 123146507 its reverse (705641321), we get a palindrome (828787828).

The spelling of 123146507 in words is "one hundred twenty-three million, one hundred forty-six thousand, five hundred seven".