121791502 has 32 divisors (see below), whose sum is σ = 224717760. Its totient is φ = 48314880.

The previous prime is 121791497. The next prime is 121791541. The reversal of 121791502 is 205197121.

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 15 ways as a sum of consecutive naturals, for example, 10324 + ... + 18712.

It is an arithmetic number, because the mean of its divisors is an integer number (7022430).

Almost surely, 2^121791502 is an apocalyptic number.

121791502 is a deficient number, since it is larger than the sum of its proper divisors (102926258).

121791502 is a wasteful number, since it uses less digits than its factorization.

121791502 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 8476.

The product of its (nonzero) digits is 1260, while the sum is 28.

The square root of 121791502 is about 11035.9187202516. The cubic root of 121791502 is about 495.6848690895.

The spelling of 121791502 in words is "one hundred twenty-one million, seven hundred ninety-one thousand, five hundred two".