126556330 has 32 divisors (see below), whose sum is σ = 242280720. Its totient is φ = 47431680.

The previous prime is 126556301. The next prime is 126556343. The reversal of 126556330 is 33655621.

It can be written as a sum of positive squares in 8 ways, for example, as 113401201 + 13155129 = 10649^2 + 3627^2 .

It is a junction number, because it is equal to n+sod(n) for n = 126556292 and 126556301.

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, 39426 + ... + 42514.

Almost surely, 2^126556330 is an apocalyptic number.

126556330 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

126556330 is a deficient number, since it is larger than the sum of its proper divisors (115724390).

126556330 is a wasteful number, since it uses less digits than its factorization.

126556330 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3354.

The product of its (nonzero) digits is 16200, while the sum is 31.

The square root of 126556330 is about 11249.7257744356. The cubic root of 126556330 is about 502.0665536117.

The spelling of 126556330 in words is "one hundred twenty-six million, five hundred fifty-six thousand, three hundred thirty".