121951104 has 64 divisors (see below), whose sum is σ = 353393280. Its totient is φ = 36953600.

The previous prime is 121951079. The next prime is 121951133. The reversal of 121951104 is 401159121.

It is a happy number.

It is a tau number, because it is divible by the number of its divisors (64).

It is a Harshad number since it is a multiple of its sum of digits (24).

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 10212 + ... + 18659.

It is an arithmetic number, because the mean of its divisors is an integer number (5521770).

Almost surely, 2^121951104 is an apocalyptic number.

It is an amenable number.

121951104 is an abundant number, since it is smaller than the sum of its proper divisors (231442176).

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

121951104 is a wasteful number, since it uses less digits than its factorization.

121951104 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 28899 (or 28887 counting only the distinct ones).

The product of its (nonzero) digits is 360, while the sum is 24.

The square root of 121951104 is about 11043.1473774463. The cubic root of 121951104 is about 495.9012984316.

The spelling of 121951104 in words is "one hundred twenty-one million, nine hundred fifty-one thousand, one hundred four".