121232159 has 2 divisors, whose sum is σ = 121232160. Its totient is φ = 121232158.

The previous prime is 121232143. The next prime is 121232173. The reversal of 121232159 is 951232121.

It is a happy number.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 121232159 - 2⁴ = 121232143 is a prime.

It is a super-3 number, since 3×121232159³ (a number of 25 digits) contains 333 as substring.

It is a Chen prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (121232119) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 60616079 + 60616080.

It is an arithmetic number, because the mean of its divisors is an integer number (60616080).

Almost surely, 2^121232159 is an apocalyptic number.

121232159 is a deficient number, since it is larger than the sum of its proper divisors (1).

121232159 is an equidigital number, since it uses as much as digits as its factorization.

121232159 is an evil number, because the sum of its binary digits is even.

The product of its digits is 1080, while the sum is 26.

The square root of 121232159 is about 11010.5476248913. The cubic root of 121232159 is about 494.9248724536.

The spelling of 121232159 in words is "one hundred twenty-one million, two hundred thirty-two thousand, one hundred fifty-nine".