126513650 has 24 divisors (see below), whose sum is σ = 239760324. Its totient is φ = 49649600.

The previous prime is 126513617. The next prime is 126513713. The reversal of 126513650 is 56315621.

It can be written as a sum of positive squares in 6 ways, for example, as 16410601 + 110103049 = 4051^2 + 10493^2 .

It is an unprimeable number.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 21221 + ... + 26520.

Almost surely, 2^126513650 is an apocalyptic number.

126513650 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

126513650 is a deficient number, since it is larger than the sum of its proper divisors (113246674).

126513650 is a wasteful number, since it uses less digits than its factorization.

126513650 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 47806 (or 47801 counting only the distinct ones).

The product of its (nonzero) digits is 5400, while the sum is 29.

The square root of 126513650 is about 11247.8286793496. The cubic root of 126513650 is about 502.0101081016.

The spelling of 126513650 in words is "one hundred twenty-six million, five hundred thirteen thousand, six hundred fifty".