126180289 has 9 divisors (see below), whose sum is σ = 129463777. Its totient is φ = 122978884.

The previous prime is 126180287. The next prime is 126180317. The reversal of 126180289 is 982081621.

The square root of 126180289 is 11233.

It is a perfect power (a square), and thus also a powerful number.

It is not a de Polignac number, because 126180289 - 2¹ = 126180287 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (126180283) by changing a digit.

It is a polite number, since it can be written in 8 ways as a sum of consecutive naturals, for example, 527832 + ... + 528070.

Almost surely, 2^126180289 is an apocalyptic number.

126180289 is the 11233-rd square number.

126180289 is the 5617-th centered octagonal number.

It is an amenable number.

126180289 is a deficient number, since it is larger than the sum of its proper divisors (3283488).

126180289 is an frugal number, since it uses more digits than its factorization.

126180289 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 572 (or 286 counting only the distinct ones).

The product of its (nonzero) digits is 13824, while the sum is 37.

The cubic root of 126180289 is about 501.5687913064.

The spelling of 126180289 in words is "one hundred twenty-six million, one hundred eighty thousand, two hundred eighty-nine".