126686525 has 12 divisors (see below), whose sum is σ = 179533152. Its totient is φ = 86870640.

The previous prime is 126686513. The next prime is 126686531. The reversal of 126686525 is 525686621.

It is not a de Polignac number, because 126686525 - 2²⁴ = 109909309 is a prime.

It is a Duffinian number.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 361787 + ... + 362136.

It is an arithmetic number, because the mean of its divisors is an integer number (14961096).

Almost surely, 2^126686525 is an apocalyptic number.

It is an amenable number.

126686525 is a deficient number, since it is larger than the sum of its proper divisors (52846627).

126686525 is an equidigital number, since it uses as much as digits as its factorization.

126686525 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 723940 (or 723935 counting only the distinct ones).

The product of its digits is 172800, while the sum is 41.

The square root of 126686525 is about 11255.5108724571. The cubic root of 126686525 is about 502.2386618274.

The spelling of 126686525 in words is "one hundred twenty-six million, six hundred eighty-six thousand, five hundred twenty-five".