125222123 has 16 divisors (see below), whose sum is σ = 137076576. Its totient is φ = 113702400.

The previous prime is 125222117. The next prime is 125222173. The reversal of 125222123 is 321222521.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-125222123 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 125222095 and 125222104.

It is not an unprimeable number, because it can be changed into a prime (125222173) 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 15 ways as a sum of consecutive naturals, for example, 371411 + ... + 371747.

It is an arithmetic number, because the mean of its divisors is an integer number (8567286).

Almost surely, 2^125222123 is an apocalyptic number.

125222123 is a gapful number since it is divisible by the number (13) formed by its first and last digit.

125222123 is a deficient number, since it is larger than the sum of its proper divisors (11854453).

125222123 is a wasteful number, since it uses less digits than its factorization.

125222123 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 734.

The product of its digits is 480, while the sum is 20.

The square root of 125222123 is about 11190.2691209819. The cubic root of 125222123 is about 500.2959887467.

Adding to 125222123 its reverse (321222521), we get a palindrome (446444644).

The spelling of 125222123 in words is "one hundred twenty-five million, two hundred twenty-two thousand, one hundred twenty-three".