121668004 has 12 divisors (see below), whose sum is σ = 214804044. Its totient is φ = 60295424.

The previous prime is 121667989. The next prime is 121668011. The reversal of 121668004 is 400866121.

It can be written as a sum of positive squares in 2 ways, for example, as 6749604 + 114918400 = 2598^2 + 10720^2 .

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, 134137 + ... + 135040.

It is an arithmetic number, because the mean of its divisors is an integer number (17900337).

Almost surely, 2^121668004 is an apocalyptic number.

It is an amenable number.

121668004 is a deficient number, since it is larger than the sum of its proper divisors (93136040).

121668004 is a wasteful number, since it uses less digits than its factorization.

121668004 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 269294 (or 269292 counting only the distinct ones).

The product of its (nonzero) digits is 2304, while the sum is 28.

The square root of 121668004 is about 11030.3220261242. The cubic root of 121668004 is about 495.5172690191.

The spelling of 121668004 in words is "one hundred twenty-one million, six hundred sixty-eight thousand, four".