125135122 has 12 divisors (see below), whose sum is σ = 218348190. Its totient is φ = 53629296.

The previous prime is 125135119. The next prime is 125135149. The reversal of 125135122 is 221531521.

It can be written as a sum of positive squares in only one way, i.e., 124344801 + 790321 = 11151^2 + 889^2 .

It is a junction number, because it is equal to n+sod(n) for n = 125135093 and 125135102.

It is an unprimeable number.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 638347 + ... + 638542.

Almost surely, 2^125135122 is an apocalyptic number.

125135122 is a deficient number, since it is larger than the sum of its proper divisors (93213068).

125135122 is a wasteful number, since it uses less digits than its factorization.

125135122 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1276905 (or 1276898 counting only the distinct ones).

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

The square root of 125135122 is about 11186.3810948850. The cubic root of 125135122 is about 500.1800977885.

Adding to 125135122 its reverse (221531521), we get a palindrome (346666643).

The spelling of 125135122 in words is "one hundred twenty-five million, one hundred thirty-five thousand, one hundred twenty-two".