126316642 has 16 divisors (see below), whose sum is σ = 191718072. Its totient is φ = 62415360.

The previous prime is 126316633. The next prime is 126316669. The reversal of 126316642 is 246613621.

It can be written as a sum of positive squares in 4 ways, for example, as 115154361 + 11162281 = 10731^2 + 3341^2 .

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 in 7 ways as a sum of consecutive naturals, for example, 61618 + ... + 63634.

Almost surely, 2^126316642 is an apocalyptic number.

126316642 is a deficient number, since it is larger than the sum of its proper divisors (65401430).

126316642 is a wasteful number, since it uses less digits than its factorization.

126316642 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2373.

The product of its digits is 10368, while the sum is 31.

The square root of 126316642 is about 11239.0676659588. The cubic root of 126316642 is about 501.7493947642.

The spelling of 126316642 in words is "one hundred twenty-six million, three hundred sixteen thousand, six hundred forty-two".