125125321 has 8 divisors (see below), whose sum is σ = 133117344. Its totient is φ = 117203520.

The previous prime is 125125291. The next prime is 125125349. The reversal of 125125321 is 123521521.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 125125321 - 2¹³ = 125117129 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 125125292 and 125125301.

It is not an unprimeable number, because it can be changed into a prime (125125361) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 13855 + ... + 21028.

It is an arithmetic number, because the mean of its divisors is an integer number (16639668).

Almost surely, 2^125125321 is an apocalyptic number.

It is an amenable number.

125125321 is a deficient number, since it is larger than the sum of its proper divisors (7992023).

125125321 is a wasteful number, since it uses less digits than its factorization.

125125321 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 35111.

The product of its digits is 600, while the sum is 22.

The square root of 125125321 is about 11185.9430089734. The cubic root of 125125321 is about 500.1670388565.

Adding to 125125321 its reverse (123521521), we get a palindrome (248646842).

The spelling of 125125321 in words is "one hundred twenty-five million, one hundred twenty-five thousand, three hundred twenty-one".