126906625 has 16 divisors (see below), whose sum is σ = 158987088. Its totient is φ = 101136000.

The previous prime is 126906623. The next prime is 126906641. The reversal of 126906625 is 526609621.

It can be written as a sum of positive squares in 8 ways, for example, as 77457601 + 49449024 = 8801^2 + 7032^2 .

It is not a de Polignac number, because 126906625 - 2¹ = 126906623 is a prime.

It is a super-2 number, since 2×126906625² = 32210582937781250, which contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (126906623) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 33319 + ... + 36931.

It is an arithmetic number, because the mean of its divisors is an integer number (9936693).

Almost surely, 2^126906625 is an apocalyptic number.

It is an amenable number.

126906625 is a deficient number, since it is larger than the sum of its proper divisors (32080463).

126906625 is an equidigital number, since it uses as much as digits as its factorization.

126906625 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3909 (or 3899 counting only the distinct ones).

The product of its (nonzero) digits is 38880, while the sum is 37.

The square root of 126906625 is about 11265.2840621087. The cubic root of 126906625 is about 502.5293498694.

The spelling of 126906625 in words is "one hundred twenty-six million, nine hundred six thousand, six hundred twenty-five".