125521268 has 12 divisors (see below), whose sum is σ = 232583652. Its totient is φ = 59068800.

The previous prime is 125521243. The next prime is 125521271. The reversal of 125521268 is 862125521.

It can be written as a sum of positive squares in 2 ways, for example, as 80066704 + 45454564 = 8948^2 + 6742^2 .

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 3 ways as a sum of consecutive naturals, for example, 922883 + ... + 923018.

It is an arithmetic number, because the mean of its divisors is an integer number (19381971).

Almost surely, 2^125521268 is an apocalyptic number.

It is an amenable number.

125521268 is a deficient number, since it is larger than the sum of its proper divisors (107062384).

125521268 is a wasteful number, since it uses less digits than its factorization.

125521268 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1845922 (or 1845920 counting only the distinct ones).

The product of its digits is 9600, while the sum is 32.

The square root of 125521268 is about 11203.6274482866. The cubic root of 125521268 is about 500.6940601153.

Adding to 125521268 its reverse (862125521), we get a palindrome (987646789).

The spelling of 125521268 in words is "one hundred twenty-five million, five hundred twenty-one thousand, two hundred sixty-eight".