123125455 has 16 divisors (see below), whose sum is σ = 152258400. Its totient is φ = 95513472.

The previous prime is 123125449. The next prime is 123125467. The reversal of 123125455 is 554521321.

It is a cyclic number.

It is not a de Polignac number, because 123125455 - 2⁵ = 123125423 is a prime.

It is a congruent number.

It is an unprimeable number.

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 15 ways as a sum of consecutive naturals, for example, 63612 + ... + 65518.

It is an arithmetic number, because the mean of its divisors is an integer number (9516150).

Almost surely, 2^123125455 is an apocalyptic number.

123125455 is a deficient number, since it is larger than the sum of its proper divisors (29132945).

123125455 is a wasteful number, since it uses less digits than its factorization.

123125455 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2298.

The product of its digits is 6000, while the sum is 28.

The square root of 123125455 is about 11096.1910131360. The cubic root of 123125455 is about 497.4880075895.

Adding to 123125455 its reverse (554521321), we get a palindrome (677646776).

The spelling of 123125455 in words is "one hundred twenty-three million, one hundred twenty-five thousand, four hundred fifty-five".