126513956 has 12 divisors (see below), whose sum is σ = 224704368. Its totient is φ = 62312712.

The previous prime is 126513953. The next prime is 126514001. The reversal of 126513956 is 659315621.

It is not an unprimeable number, because it can be changed into a prime (126513953) 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 3 ways as a sum of consecutive naturals, for example, 235766 + ... + 236301.

It is an arithmetic number, because the mean of its divisors is an integer number (18725364).

Almost surely, 2^126513956 is an apocalyptic number.

It is an amenable number.

126513956 is a deficient number, since it is larger than the sum of its proper divisors (98190412).

126513956 is a wasteful number, since it uses less digits than its factorization.

126513956 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 472138 (or 472136 counting only the distinct ones).

The product of its digits is 48600, while the sum is 38.

The square root of 126513956 is about 11247.8422819668. The cubic root of 126513956 is about 502.0105128405.

The spelling of 126513956 in words is "one hundred twenty-six million, five hundred thirteen thousand, nine hundred fifty-six".