121833853 has 2 divisors, whose sum is σ = 121833854. Its totient is φ = 121833852.

The previous prime is 121833841. The next prime is 121833869. The reversal of 121833853 is 358338121.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 107371044 + 14462809 = 10362^2 + 3803^2 .

It is a cyclic number.

It is not a de Polignac number, because 121833853 - 2⁵ = 121833821 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (121833893) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 60916926 + 60916927.

It is an arithmetic number, because the mean of its divisors is an integer number (60916927).

Almost surely, 2^121833853 is an apocalyptic number.

It is an amenable number.

121833853 is a deficient number, since it is larger than the sum of its proper divisors (1).

121833853 is an equidigital number, since it uses as much as digits as its factorization.

121833853 is an evil number, because the sum of its binary digits is even.

The product of its digits is 17280, while the sum is 34.

The square root of 121833853 is about 11037.8373334635. The cubic root of 121833853 is about 495.7423178625.

The spelling of 121833853 in words is "one hundred twenty-one million, eight hundred thirty-three thousand, eight hundred fifty-three".