123288953 has 4 divisors (see below), whose sum is σ = 127266048. Its totient is φ = 119311860.

The previous prime is 123288917. The next prime is 123288961. The reversal of 123288953 is 359882321.

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 123288953 - 2¹² = 123284857 is a prime.

It is a Duffinian number.

It is a Curzon number.

It is a self number, because there is not a number n which added to its sum of digits gives 123288953.

It is not an unprimeable number, because it can be changed into a prime (123288553) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 1988501 + ... + 1988562.

It is an arithmetic number, because the mean of its divisors is an integer number (31816512).

Almost surely, 2^123288953 is an apocalyptic number.

It is an amenable number.

123288953 is a deficient number, since it is larger than the sum of its proper divisors (3977095).

123288953 is an equidigital number, since it uses as much as digits as its factorization.

123288953 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3977094.

The product of its digits is 103680, while the sum is 41.

The square root of 123288953 is about 11103.5558718818. Note that the first 3 decimals coincide. The cubic root of 123288953 is about 497.7081145740.

The spelling of 123288953 in words is "one hundred twenty-three million, two hundred eighty-eight thousand, nine hundred fifty-three".