126938210 has 32 divisors (see below), whose sum is σ = 261671040. Its totient is φ = 43431552.

The previous prime is 126938209. The next prime is 126938213. The reversal of 126938210 is 12839621.

It is a super-2 number, since 2×126938210² = 32226618316008200, which contains 22 as substring.

It is a Curzon number.

It is not an unprimeable number, because it can be changed into a prime (126938213) by changing a digit.

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, 38237 + ... + 41423.

It is an arithmetic number, because the mean of its divisors is an integer number (8177220).

Almost surely, 2^126938210 is an apocalyptic number.

126938210 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

126938210 is an abundant number, since it is smaller than the sum of its proper divisors (134732830).

126938210 is a wasteful number, since it uses less digits than its factorization.

126938210 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3770.

The product of its (nonzero) digits is 5184, while the sum is 32.

The square root of 126938210 is about 11266.6858481099. The cubic root of 126938210 is about 502.5710368785.

The spelling of 126938210 in words is "one hundred twenty-six million, nine hundred thirty-eight thousand, two hundred ten".