121028792 has 16 divisors (see below), whose sum is σ = 227518200. Its totient is φ = 60357280.

The previous prime is 121028777. The next prime is 121028833. The reversal of 121028792 is 297820121.

It is a happy number.

It is a congruent number.

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 3 ways as a sum of consecutive naturals, for example, 16334 + ... + 22557.

Almost surely, 2^121028792 is an apocalyptic number.

It is an amenable number.

121028792 is a deficient number, since it is larger than the sum of its proper divisors (106489408).

121028792 is a wasteful number, since it uses less digits than its factorization.

121028792 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 39286 (or 39282 counting only the distinct ones).

The product of its (nonzero) digits is 4032, while the sum is 32.

The square root of 121028792 is about 11001.3086494289. The cubic root of 121028792 is about 494.6479719987.

The spelling of 121028792 in words is "one hundred twenty-one million, twenty-eight thousand, seven hundred ninety-two".