121825213 has 8 divisors (see below), whose sum is σ = 129643200. Its totient is φ = 114079680.

The previous prime is 121825211. The next prime is 121825271. The reversal of 121825213 is 312528121.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 121825213 - 2¹ = 121825211 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (121825211) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 14623 + ... + 21388.

It is an arithmetic number, because the mean of its divisors is an integer number (16205400).

Almost surely, 2^121825213 is an apocalyptic number.

It is an amenable number.

121825213 is a deficient number, since it is larger than the sum of its proper divisors (7817987).

121825213 is a wasteful number, since it uses less digits than its factorization.

121825213 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 36227.

The product of its digits is 960, while the sum is 25.

The square root of 121825213 is about 11037.4459455075. The cubic root of 121825213 is about 495.7305988567.

The spelling of 121825213 in words is "one hundred twenty-one million, eight hundred twenty-five thousand, two hundred thirteen".