126555712 has 14 divisors (see below), whose sum is σ = 251134118. Its totient is φ = 63277824.

The previous prime is 126555707. The next prime is 126555731. The reversal of 126555712 is 217555621.

It can be written as a sum of positive squares in only one way, i.e., 70963776 + 55591936 = 8424^2 + 7456^2 .

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 as a sum of consecutive naturals, namely, 988653 + ... + 988780.

Almost surely, 2^126555712 is an apocalyptic number.

It is an amenable number.

126555712 is a deficient number, since it is larger than the sum of its proper divisors (124578406).

126555712 is an equidigital number, since it uses as much as digits as its factorization.

126555712 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1977445 (or 1977435 counting only the distinct ones).

The product of its digits is 21000, while the sum is 34.

The square root of 126555712 is about 11249.6983070658. The cubic root of 126555712 is about 502.0657363797.

Subtracting 126555712 from its reverse (217555621), we obtain a palindrome (90999909).

The spelling of 126555712 in words is "one hundred twenty-six million, five hundred fifty-five thousand, seven hundred twelve".