121903964 has 36 divisors (see below), whose sum is σ = 267256584. Its totient is φ = 48224736.

The previous prime is 121903963. The next prime is 121903967. The reversal of 121903964 is 469309121.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (121903963) by changing a digit.

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 11 ways as a sum of consecutive naturals, for example, 21374 + ... + 26469.

It is an arithmetic number, because the mean of its divisors is an integer number (7423794).

Almost surely, 2^121903964 is an apocalyptic number.

121903964 is a gapful number since it is divisible by the number (14) formed by its first and last digit.

It is an amenable number.

121903964 is an abundant number, since it is smaller than the sum of its proper divisors (145352620).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

121903964 is a wasteful number, since it uses less digits than its factorization.

121903964 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 47874 (or 47865 counting only the distinct ones).

The product of its (nonzero) digits is 11664, while the sum is 35.

The square root of 121903964 is about 11041.0128158607. The cubic root of 121903964 is about 495.8373935846.

The spelling of 121903964 in words is "one hundred twenty-one million, nine hundred three thousand, nine hundred sixty-four".