125352123 has 32 divisors (see below), whose sum is σ = 187790400. Its totient is φ = 73844736.

The previous prime is 125352121. The next prime is 125352137. The reversal of 125352123 is 321253521.

It is a happy number.

It is not a de Polignac number, because 125352123 - 2¹ = 125352121 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 125352093 and 125352102.

It is not an unprimeable number, because it can be changed into a prime (125352121) 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 31 ways as a sum of consecutive naturals, for example, 154543 + ... + 155351.

It is an arithmetic number, because the mean of its divisors is an integer number (5868450).

Almost surely, 2^125352123 is an apocalyptic number.

125352123 is a gapful number since it is divisible by the number (13) formed by its first and last digit.

125352123 is a deficient number, since it is larger than the sum of its proper divisors (62438277).

125352123 is a wasteful number, since it uses less digits than its factorization.

125352123 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 991.

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

The square root of 125352123 is about 11196.0762323235. The cubic root of 125352123 is about 500.4690571665.

The spelling of 125352123 in words is "one hundred twenty-five million, three hundred fifty-two thousand, one hundred twenty-three".