121375436 has 24 divisors (see below), whose sum is σ = 261424800. Its totient is φ = 48016512.

The previous prime is 121375417. The next prime is 121375451. The reversal of 121375436 is 634573121.

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 7 ways as a sum of consecutive naturals, for example, 166361 + ... + 167088.

It is an arithmetic number, because the mean of its divisors is an integer number (10892700).

Almost surely, 2^121375436 is an apocalyptic number.

It is an amenable number.

121375436 is an abundant number, since it is smaller than the sum of its proper divisors (140049364).

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

121375436 is a wasteful number, since it uses less digits than its factorization.

121375436 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 333473 (or 333471 counting only the distinct ones).

The product of its digits is 15120, while the sum is 32.

The square root of 121375436 is about 11017.0520557906. The cubic root of 121375436 is about 495.1197696783.

The spelling of 121375436 in words is "one hundred twenty-one million, three hundred seventy-five thousand, four hundred thirty-six".