126130185 has 12 divisors (see below), whose sum is σ = 218625732. Its totient is φ = 67269408.

The previous prime is 126130181. The next prime is 126130201. The reversal of 126130185 is 581031621.

It can be written as a sum of positive squares in 2 ways, for example, as 28772496 + 97357689 = 5364^2 + 9867^2 .

It is not a de Polignac number, because 126130185 - 2² = 126130181 is a prime.

It is not an unprimeable number, because it can be changed into a prime (126130181) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 1401402 + ... + 1401491.

It is an arithmetic number, because the mean of its divisors is an integer number (18218811).

Almost surely, 2^126130185 is an apocalyptic number.

126130185 is a gapful number since it is divisible by the number (15) formed by its first and last digit.

It is an amenable number.

126130185 is a deficient number, since it is larger than the sum of its proper divisors (92495547).

126130185 is a wasteful number, since it uses less digits than its factorization.

126130185 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2802904 (or 2802901 counting only the distinct ones).

The product of its (nonzero) digits is 1440, while the sum is 27.

The square root of 126130185 is about 11230.7695640147. The cubic root of 126130185 is about 501.5023944337.

The spelling of 126130185 in words is "one hundred twenty-six million, one hundred thirty thousand, one hundred eighty-five".