125235123 has 16 divisors (see below), whose sum is σ = 180327840. Its totient is φ = 76852224.

The previous prime is 125235113. The next prime is 125235139. The reversal of 125235123 is 321532521.

It is a happy number.

It is not a de Polignac number, because 125235123 - 2¹⁰ = 125234099 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 125235093 and 125235102.

It is not an unprimeable number, because it can be changed into a prime (125235113) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 10243 + ... + 18851.

It is an arithmetic number, because the mean of its divisors is an integer number (11270490).

Almost surely, 2^125235123 is an apocalyptic number.

125235123 is a gapful number since it is divisible by the number (13) formed by its first and last digit.

125235123 is a deficient number, since it is larger than the sum of its proper divisors (55092717).

125235123 is a wasteful number, since it uses less digits than its factorization.

125235123 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 8998.

The product of its digits is 1800, while the sum is 24.

The square root of 125235123 is about 11190.8499677192. The cubic root of 125235123 is about 500.3133009773.

Adding to 125235123 its reverse (321532521), we get a palindrome (446767644).

It can be divided in two parts, 12 and 5235123, that multiplied together give a square (62821476 = 7926²).

The spelling of 125235123 in words is "one hundred twenty-five million, two hundred thirty-five thousand, one hundred twenty-three".