126415556 has 6 divisors (see below), whose sum is σ = 221227230. Its totient is φ = 63207776.

The previous prime is 126415543. The next prime is 126415561. The reversal of 126415556 is 655514621.

It can be written as a sum of positive squares in only one way, i.e., 113209600 + 13205956 = 10640^2 + 3634^2 .

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 as a sum of consecutive naturals, namely, 15801941 + ... + 15801948.

It is an arithmetic number, because the mean of its divisors is an integer number (36871205).

Almost surely, 2^126415556 is an apocalyptic number.

It is an amenable number.

126415556 is a deficient number, since it is larger than the sum of its proper divisors (94811674).

126415556 is a wasteful number, since it uses less digits than its factorization.

126415556 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 31603893 (or 31603891 counting only the distinct ones).

The product of its digits is 36000, while the sum is 35.

The square root of 126415556 is about 11243.4672588130. The cubic root of 126415556 is about 501.8803278700.

The spelling of 126415556 in words is "one hundred twenty-six million, four hundred fifteen thousand, five hundred fifty-six".