126660213 has 32 divisors (see below), whose sum is σ = 202889600. Its totient is φ = 77822208.

The previous prime is 126660187. The next prime is 126660223. The reversal of 126660213 is 312066621.

It is not a de Polignac number, because 126660213 - 2¹³ = 126652021 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (27).

It is a zygodrome in base 3.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (126660223) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 15645 + ... + 22317.

It is an arithmetic number, because the mean of its divisors is an integer number (6340300).

Almost surely, 2^126660213 is an apocalyptic number.

It is an amenable number.

126660213 is a deficient number, since it is larger than the sum of its proper divisors (76229387).

126660213 is a wasteful number, since it uses less digits than its factorization.

126660213 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 6738 (or 6732 counting only the distinct ones).

The product of its (nonzero) digits is 2592, while the sum is 27.

The square root of 126660213 is about 11254.3419621051. The cubic root of 126660213 is about 502.2038888088.

The spelling of 126660213 in words is "one hundred twenty-six million, six hundred sixty thousand, two hundred thirteen".