126552210 has 64 divisors (see below), whose sum is σ = 325562112. Its totient is φ = 31401216.

The previous prime is 126552193. The next prime is 126552221. The reversal of 126552210 is 12255621.

It is a happy number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 23052 + ... + 28008.

It is an arithmetic number, because the mean of its divisors is an integer number (5086908).

Almost surely, 2^126552210 is an apocalyptic number.

126552210 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is a practical number, because each smaller number is the sum of distinct divisors of 126552210, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (162781056).

126552210 is an abundant number, since it is smaller than the sum of its proper divisors (199009902).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

126552210 is a wasteful number, since it uses less digits than its factorization.

126552210 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 5027.

The product of its (nonzero) digits is 1200, while the sum is 24.

The square root of 126552210 is about 11249.5426573706. The cubic root of 126552210 is about 502.0611053483.

The spelling of 126552210 in words is "one hundred twenty-six million, five hundred fifty-two thousand, two hundred ten".