121833869 has 2 divisors, whose sum is σ = 121833870. Its totient is φ = 121833868.

The previous prime is 121833853. The next prime is 121833893. The reversal of 121833869 is 968338121.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 89775625 + 32058244 = 9475^2 + 5662^2 .

It is a cyclic number.

It is not a de Polignac number, because 121833869 - 2⁴ = 121833853 is a prime.

It is a super-2 number, since 2×121833869² = 29686983271018322, which contains 22 as substring.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (121833809) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 60916934 + 60916935.

It is an arithmetic number, because the mean of its divisors is an integer number (60916935).

Almost surely, 2^121833869 is an apocalyptic number.

It is an amenable number.

121833869 is a deficient number, since it is larger than the sum of its proper divisors (1).

121833869 is an equidigital number, since it uses as much as digits as its factorization.

121833869 is an evil number, because the sum of its binary digits is even.

The product of its digits is 62208, while the sum is 41.

The square root of 121833869 is about 11037.8380582431. The cubic root of 121833869 is about 495.7423395639.

The spelling of 121833869 in words is "one hundred twenty-one million, eight hundred thirty-three thousand, eight hundred sixty-nine".