126859825 has 6 divisors (see below), whose sum is σ = 157306214. Its totient is φ = 101487840.

The previous prime is 126859819. The next prime is 126859829. The reversal of 126859825 is 528958621.

It can be written as a sum of positive squares in 3 ways, for example, as 364816 + 126495009 = 604^2 + 11247^2 .

It is not a de Polignac number, because 126859825 - 2¹³ = 126851633 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (126859829) by changing a digit.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 2537172 + ... + 2537221.

Almost surely, 2^126859825 is an apocalyptic number.

It is an amenable number.

126859825 is a deficient number, since it is larger than the sum of its proper divisors (30446389).

126859825 is an equidigital number, since it uses as much as digits as its factorization.

126859825 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 5074403 (or 5074398 counting only the distinct ones).

The product of its digits is 345600, while the sum is 46.

The square root of 126859825 is about 11263.2066925898. The cubic root of 126859825 is about 502.4675688417.

The spelling of 126859825 in words is "one hundred twenty-six million, eight hundred fifty-nine thousand, eight hundred twenty-five".