125006321 has 16 divisors (see below), whose sum is σ = 145048320. Its totient is φ = 106471680.

The previous prime is 125006303. The next prime is 125006341. The reversal of 125006321 is 123600521.

It is not a de Polignac number, because 125006321 - 2⁶ = 125006257 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 125006293 and 125006302.

It is not an unprimeable number, because it can be changed into a prime (125006341) 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 15 ways as a sum of consecutive naturals, for example, 43295 + ... + 46091.

It is an arithmetic number, because the mean of its divisors is an integer number (9065520).

Almost surely, 2^125006321 is an apocalyptic number.

125006321 is a gapful number since it is divisible by the number (11) formed by its first and last digit.

It is an amenable number.

125006321 is a deficient number, since it is larger than the sum of its proper divisors (20041999).

125006321 is a wasteful number, since it uses less digits than its factorization.

125006321 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3064.

The product of its (nonzero) digits is 360, while the sum is 20.

The square root of 125006321 is about 11180.6225676391. The cubic root of 125006321 is about 500.0084278579.

Adding to 125006321 its reverse (123600521), we get a palindrome (248606842).

The spelling of 125006321 in words is "one hundred twenty-five million, six thousand, three hundred twenty-one".