121723964 has 12 divisors (see below), whose sum is σ = 213119088. Its totient is φ = 60832800.

The previous prime is 121723913. The next prime is 121723993. The reversal of 121723964 is 469327121.

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 in 3 ways as a sum of consecutive naturals, for example, 4049 + ... + 16119.

It is an arithmetic number, because the mean of its divisors is an integer number (17759924).

Almost surely, 2^121723964 is an apocalyptic number.

It is an amenable number.

121723964 is a deficient number, since it is larger than the sum of its proper divisors (91395124).

121723964 is a wasteful number, since it uses less digits than its factorization.

121723964 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 14596 (or 14594 counting only the distinct ones).

The product of its digits is 18144, while the sum is 35.

The square root of 121723964 is about 11032.8583784983. The cubic root of 121723964 is about 495.5932268040.

The spelling of 121723964 in words is "one hundred twenty-one million, seven hundred twenty-three thousand, nine hundred sixty-four".