121386192 has 40 divisors (see below), whose sum is σ = 315229824. Its totient is φ = 40249344.

The previous prime is 121386179. The next prime is 121386197. The reversal of 121386192 is 291683121.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (121386197) 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, 2713 + ... + 15815.

Almost surely, 2^121386192 is an apocalyptic number.

121386192 is a gapful number since it is divisible by the number (12) formed by its first and last digit.

It is an amenable number.

121386192 is an abundant number, since it is smaller than the sum of its proper divisors (193843632).

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

121386192 is a wasteful number, since it uses less digits than its factorization.

121386192 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 13307 (or 13301 counting only the distinct ones).

The product of its digits is 5184, while the sum is 33.

The square root of 121386192 is about 11017.5401973399. The cubic root of 121386192 is about 495.1343946884.

The spelling of 121386192 in words is "one hundred twenty-one million, three hundred eighty-six thousand, one hundred ninety-two".