1212401159 has 2 divisors, whose sum is σ = 1212401160. Its totient is φ = 1212401158.

The previous prime is 1212401123. The next prime is 1212401161. The reversal of 1212401159 is 9511042121.

It is a strong prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-1212401159 is a prime.

Together with 1212401161, it forms a pair of twin primes.

It is a Chen prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (1212401059) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 606200579 + 606200580.

It is an arithmetic number, because the mean of its divisors is an integer number (606200580).

Almost surely, 2^1212401159 is an apocalyptic number.

1212401159 is a deficient number, since it is larger than the sum of its proper divisors (1).

1212401159 is an equidigital number, since it uses as much as digits as its factorization.

1212401159 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 720, while the sum is 26.

The square root of 1212401159 is about 34819.5513899878. The cubic root of 1212401159 is about 1066.3066416587.

The spelling of 1212401159 in words is "one billion, two hundred twelve million, four hundred one thousand, one hundred fifty-nine".