123048517 has 4 divisors (see below), whose sum is σ = 127017856. Its totient is φ = 119079180.

The previous prime is 123048509. The next prime is 123048547. The reversal of 123048517 is 715840321.

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 123048517 - 2³ = 123048509 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (31), and also a Moran number because the ratio is a prime number: 3969307 = 123048517 / (1 + 2 + 3 + 0 + 4 + 8 + 5 + 1 + 7).

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (123048547) 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 3 ways as a sum of consecutive naturals, for example, 1984623 + ... + 1984684.

It is an arithmetic number, because the mean of its divisors is an integer number (31754464).

Almost surely, 2^123048517 is an apocalyptic number.

It is an amenable number.

123048517 is a deficient number, since it is larger than the sum of its proper divisors (3969339).

123048517 is an equidigital number, since it uses as much as digits as its factorization.

123048517 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3969338.

The product of its (nonzero) digits is 6720, while the sum is 31.

The square root of 123048517 is about 11092.7236060401. The cubic root of 123048517 is about 497.3843634172.

Adding to 123048517 its reverse (715840321), we get a palindrome (838888838).

The spelling of 123048517 in words is "one hundred twenty-three million, forty-eight thousand, five hundred seventeen".