125523126 has 24 divisors (see below), whose sum is σ = 272181000. Its totient is φ = 41808096.

The previous prime is 125523119. The next prime is 125523127. The reversal of 125523126 is 621325521.

It is a happy number.

125523126 is a `hidden beast` number, since 12 + 5 + 523 + 126 = 666.

It is a super-3 number, since 3×125523126³ (a number of 25 digits) contains 333 as substring.

It is a self number, because there is not a number n which added to its sum of digits gives 125523126.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (125523127) by changing a digit.

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 11 ways as a sum of consecutive naturals, for example, 34125 + ... + 37623.

It is an arithmetic number, because the mean of its divisors is an integer number (11340875).

Almost surely, 2^125523126 is an apocalyptic number.

125523126 is an abundant number, since it is smaller than the sum of its proper divisors (146657874).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

125523126 is a wasteful number, since it uses less digits than its factorization.

125523126 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 5500 (or 5497 counting only the distinct ones).

The product of its digits is 3600, while the sum is 27.

The square root of 125523126 is about 11203.7103675523. The cubic root of 125523126 is about 500.6965305731.

Adding to 125523126 its reverse (621325521), we get a palindrome (746848647).

The spelling of 125523126 in words is "one hundred twenty-five million, five hundred twenty-three thousand, one hundred twenty-six".