1224131159 has 2 divisors, whose sum is σ = 1224131160. Its totient is φ = 1224131158.

The previous prime is 1224131113. The next prime is 1224131171. The reversal of 1224131159 is 9511314221.

It is a strong prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-1224131159 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (1224131459) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 612065579 + 612065580.

It is an arithmetic number, because the mean of its divisors is an integer number (612065580).

Almost surely, 2^1224131159 is an apocalyptic number.

1224131159 is a deficient number, since it is larger than the sum of its proper divisors (1).

1224131159 is an equidigital number, since it uses as much as digits as its factorization.

1224131159 is an evil number, because the sum of its binary digits is even.

The product of its digits is 2160, while the sum is 29.

The square root of 1224131159 is about 34987.5857841035. The cubic root of 1224131159 is about 1069.7344550232.

The spelling of 1224131159 in words is "one billion, two hundred twenty-four million, one hundred thirty-one thousand, one hundred fifty-nine".