126065686 has 4 divisors (see below), whose sum is σ = 189098532. Its totient is φ = 63032842.

The previous prime is 126065669. The next prime is 126065701. The reversal of 126065686 is 686560621.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 686560621 = 41 ⋅16745381.

It is a congruent number.

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, 31516420 + ... + 31516423.

It is an arithmetic number, because the mean of its divisors is an integer number (47274633).

Almost surely, 2^126065686 is an apocalyptic number.

126065686 is a deficient number, since it is larger than the sum of its proper divisors (63032846).

126065686 is an equidigital number, since it uses as much as digits as its factorization.

126065686 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 63032845.

The product of its (nonzero) digits is 103680, while the sum is 40.

The square root of 126065686 is about 11227.8976660816. The cubic root of 126065686 is about 501.4168956872.

The spelling of 126065686 in words is "one hundred twenty-six million, sixty-five thousand, six hundred eighty-six".