121382385 has 48 divisors (see below), whose sum is σ = 209091456. Its totient is φ = 60014592.

The previous prime is 121382377. The next prime is 121382389. The reversal of 121382385 is 583283121.

It is not a de Polignac number, because 121382385 - 2³ = 121382377 is a prime.

It is not an unprimeable number, because it can be changed into a prime (121382389) by changing a digit.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 472177 + ... + 472433.

It is an arithmetic number, because the mean of its divisors is an integer number (4356072).

Almost surely, 2^121382385 is an apocalyptic number.

121382385 is a gapful number since it is divisible by the number (15) formed by its first and last digit.

It is an amenable number.

121382385 is a deficient number, since it is larger than the sum of its proper divisors (87709071).

121382385 is a wasteful number, since it uses less digits than its factorization.

121382385 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 362 (or 325 counting only the distinct ones).

The product of its digits is 11520, while the sum is 33.

The square root of 121382385 is about 11017.3674260233. The cubic root of 121382385 is about 495.1292183821.

The spelling of 121382385 in words is "one hundred twenty-one million, three hundred eighty-two thousand, three hundred eighty-five".