121903596 has 24 divisors (see below), whose sum is σ = 316046640. Its totient is φ = 40634496.

The previous prime is 121903589. The next prime is 121903597. The reversal of 121903596 is 695309121.

It is a Harshad number since it is a multiple of its sum of digits (36).

It is a self number, because there is not a number n which added to its sum of digits gives 121903596.

It is not an unprimeable number, because it can be changed into a prime (121903597) 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 7 ways as a sum of consecutive naturals, for example, 564261 + ... + 564476.

It is an arithmetic number, because the mean of its divisors is an integer number (13168610).

Almost surely, 2^121903596 is an apocalyptic number.

It is an amenable number.

121903596 is an abundant number, since it is smaller than the sum of its proper divisors (194143044).

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

121903596 is a wasteful number, since it uses less digits than its factorization.

121903596 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1128750 (or 1128742 counting only the distinct ones).

The product of its (nonzero) digits is 14580, while the sum is 36.

The square root of 121903596 is about 11040.9961507103. The cubic root of 121903596 is about 495.8368946444.

The spelling of 121903596 in words is "one hundred twenty-one million, nine hundred three thousand, five hundred ninety-six".