126115210 has 32 divisors (see below), whose sum is σ = 255104640. Its totient is φ = 44539968.

The previous prime is 126115207. The next prime is 126115237. The reversal of 126115210 is 12511621.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 18100 + ... + 24079.

It is an arithmetic number, because the mean of its divisors is an integer number (7972020).

Almost surely, 2^126115210 is an apocalyptic number.

126115210 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

126115210 is an abundant number, since it is smaller than the sum of its proper divisors (128989430).

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

126115210 is a wasteful number, since it uses less digits than its factorization.

126115210 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 42222.

The product of its (nonzero) digits is 120, while the sum is 19.

The square root of 126115210 is about 11230.1028490393. The cubic root of 126115210 is about 501.4825464341.

Adding to 126115210 its reverse (12511621), we get a palindrome (138626831).

It can be divided in two parts, 1261 and 15210, that added together give a triangular number (16471 = T₁₈₁).

The spelling of 126115210 in words is "one hundred twenty-six million, one hundred fifteen thousand, two hundred ten".