1212133159 has 2 divisors, whose sum is σ = 1212133160. Its totient is φ = 1212133158.

The previous prime is 1212133157. The next prime is 1212133163. The reversal of 1212133159 is 9513312121.

It is a weak prime.

It is an emirp because it is prime and its reverse (9513312121) is a distict prime.

It is a cyclic number.

It is not a de Polignac number, because 1212133159 - 2¹ = 1212133157 is a prime.

Together with 1212133157, it forms a pair of twin primes.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (1212133151) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 606066579 + 606066580.

It is an arithmetic number, because the mean of its divisors is an integer number (606066580).

Almost surely, 2^1212133159 is an apocalyptic number.

1212133159 is a deficient number, since it is larger than the sum of its proper divisors (1).

1212133159 is an equidigital number, since it uses as much as digits as its factorization.

1212133159 is an evil number, because the sum of its binary digits is even.

The product of its digits is 1620, while the sum is 28.

The square root of 1212133159 is about 34815.7027647009. The cubic root of 1212133159 is about 1066.2280672152.

The spelling of 1212133159 in words is "one billion, two hundred twelve million, one hundred thirty-three thousand, one hundred fifty-nine".