126696686 has 4 divisors (see below), whose sum is σ = 190045032. Its totient is φ = 63348342.

The previous prime is 126696653. The next prime is 126696697. The reversal of 126696686 is 686696621.

It is a semiprime because it is the product of two primes.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 31674170 + ... + 31674173.

It is an arithmetic number, because the mean of its divisors is an integer number (47511258).

Almost surely, 2^126696686 is an apocalyptic number.

126696686 is a deficient number, since it is larger than the sum of its proper divisors (63348346).

126696686 is an equidigital number, since it uses as much as digits as its factorization.

126696686 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 63348345.

The product of its digits is 1119744, while the sum is 50.

The square root of 126696686 is about 11255.9622422963. The cubic root of 126696686 is about 502.2520889608.

The spelling of 126696686 in words is "one hundred twenty-six million, six hundred ninety-six thousand, six hundred eighty-six".