126060665 has 8 divisors (see below), whose sum is σ = 155361480. Its totient is φ = 98122752.

The previous prime is 126060643. The next prime is 126060667. The reversal of 126060665 is 566060621.

It can be written as a sum of positive squares in 4 ways, for example, as 78340201 + 47720464 = 8851^2 + 6908^2 .

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 126060665 - 2⁸ = 126060409 is a prime.

It is not an unprimeable number, because it can be changed into a prime (126060667) 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 7 ways as a sum of consecutive naturals, for example, 340520 + ... + 340889.

It is an arithmetic number, because the mean of its divisors is an integer number (19420185).

Almost surely, 2^126060665 is an apocalyptic number.

It is an amenable number.

126060665 is a deficient number, since it is larger than the sum of its proper divisors (29300815).

126060665 is an equidigital number, since it uses as much as digits as its factorization.

126060665 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 681451.

The product of its (nonzero) digits is 12960, while the sum is 32.

The square root of 126060665 is about 11227.6740690136. The cubic root of 126060665 is about 501.4102387140.

The spelling of 126060665 in words is "one hundred twenty-six million, sixty thousand, six hundred sixty-five".