121688326 has 16 divisors (see below), whose sum is σ = 186112080. Its totient is φ = 59656480.

The previous prime is 121688309. The next prime is 121688327. The reversal of 121688326 is 623886121.

It is a happy number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (121688327) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 53280 + ... + 55516.

It is an arithmetic number, because the mean of its divisors is an integer number (11632005).

Almost surely, 2^121688326 is an apocalyptic number.

121688326 is a deficient number, since it is larger than the sum of its proper divisors (64423754).

121688326 is a wasteful number, since it uses less digits than its factorization.

121688326 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2759.

The product of its digits is 27648, while the sum is 37.

The square root of 121688326 is about 11031.2431756353. The cubic root of 121688326 is about 495.5448559525.

The spelling of 121688326 in words is "one hundred twenty-one million, six hundred eighty-eight thousand, three hundred twenty-six".