125522165 has 8 divisors (see below), whose sum is σ = 150769080. Its totient is φ = 100322752.

The previous prime is 125522149. The next prime is 125522183. The reversal of 125522165 is 561225521.

It can be written as a sum of positive squares in 4 ways, for example, as 2067844 + 123454321 = 1438^2 + 11111^2 .

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 125522165 - 2⁴ = 125522149 is a prime.

It is a congruent number.

It is an unprimeable number.

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 7 ways as a sum of consecutive naturals, for example, 5774 + ... + 16863.

It is an arithmetic number, because the mean of its divisors is an integer number (18846135).

Almost surely, 2^125522165 is an apocalyptic number.

It is an amenable number.

125522165 is a deficient number, since it is larger than the sum of its proper divisors (25246915).

125522165 is a wasteful number, since it uses less digits than its factorization.

125522165 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 23751.

The product of its digits is 6000, while the sum is 29.

The square root of 125522165 is about 11203.6674798925. The cubic root of 125522165 is about 500.6952527990.

Adding to 125522165 its reverse (561225521), we get a palindrome (686747686).

The spelling of 125522165 in words is "one hundred twenty-five million, five hundred twenty-two thousand, one hundred sixty-five".