126401210 has 32 divisors (see below), whose sum is σ = 245563920. Its totient is φ = 46568448.

The previous prime is 126401207. The next prime is 126401221. The reversal of 126401210 is 12104621.

It can be written as a sum of positive squares in 8 ways, for example, as 6345361 + 120055849 = 2519^2 + 10957^2 .

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 84146 + ... + 85634.

Almost surely, 2^126401210 is an apocalyptic number.

126401210 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

126401210 is a deficient number, since it is larger than the sum of its proper divisors (119162710).

126401210 is a wasteful number, since it uses less digits than its factorization.

126401210 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2162.

The product of its (nonzero) digits is 96, while the sum is 17.

The square root of 126401210 is about 11242.8292702504. The cubic root of 126401210 is about 501.8613422119.

Adding to 126401210 its reverse (12104621), we get a palindrome (138505831).

The spelling of 126401210 in words is "one hundred twenty-six million, four hundred one thousand, two hundred ten".