123406425 has 36 divisors (see below), whose sum is σ = 232676080. Its totient is φ = 62350560.

The previous prime is 123406391. The next prime is 123406447. The reversal of 123406425 is 524604321.

123406425 is a `hidden beast` number, since 1 + 234 + 0 + 6 + 425 = 666.

It is not a de Polignac number, because 123406425 - 2⁸ = 123406169 is a prime.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 35 ways as a sum of consecutive naturals, for example, 10159 + ... + 18708.

Almost surely, 2^123406425 is an apocalyptic number.

123406425 is a gapful number since it is divisible by the number (15) formed by its first and last digit.

It is an amenable number.

123406425 is a deficient number, since it is larger than the sum of its proper divisors (109269655).

123406425 is a wasteful number, since it uses less digits than its factorization.

123406425 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 28902 (or 28894 counting only the distinct ones).

The product of its (nonzero) digits is 5760, while the sum is 27.

The square root of 123406425 is about 11108.8444493566. The cubic root of 123406425 is about 497.8661395676.

The spelling of 123406425 in words is "one hundred twenty-three million, four hundred six thousand, four hundred twenty-five".