125206165 has 16 divisors (see below), whose sum is σ = 173416320. Its totient is φ = 85003200.

The previous prime is 125206141. The next prime is 125206171. The reversal of 125206165 is 561602521.

It is not a de Polignac number, because 125206165 - 2⁹ = 125205653 is a prime.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 14175 + ... + 21244.

It is an arithmetic number, because the mean of its divisors is an integer number (10838520).

Almost surely, 2^125206165 is an apocalyptic number.

It is an amenable number.

125206165 is a deficient number, since it is larger than the sum of its proper divisors (48210155).

125206165 is a wasteful number, since it uses less digits than its factorization.

125206165 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 35532.

The product of its (nonzero) digits is 3600, while the sum is 28.

The square root of 125206165 is about 11189.5560680485. The cubic root of 125206165 is about 500.2747356796.

Adding to 125206165 its reverse (561602521), we get a palindrome (686808686).

The spelling of 125206165 in words is "one hundred twenty-five million, two hundred six thousand, one hundred sixty-five".