1201688126 has 8 divisors (see below), whose sum is σ = 1806117264. Its totient is φ = 599649040.

The previous prime is 1201688119. The next prime is 1201688149. The reversal of 1201688126 is 6218861021.

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

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 596255 + ... + 598266.

It is an arithmetic number, because the mean of its divisors is an integer number (225764658).

Almost surely, 2^1201688126 is an apocalyptic number.

1201688126 is a deficient number, since it is larger than the sum of its proper divisors (604429138).

1201688126 is a wasteful number, since it uses less digits than its factorization.

1201688126 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1195026.

The product of its (nonzero) digits is 9216, while the sum is 35.

The square root of 1201688126 is about 34665.3735880633. The cubic root of 1201688126 is about 1063.1566416863.

The spelling of 1201688126 in words is "one billion, two hundred one million, six hundred eighty-eight thousand, one hundred twenty-six".