1129153213 has 2 divisors, whose sum is σ = 1129153214. Its totient is φ = 1129153212.

The previous prime is 1129153199. The next prime is 1129153219. The reversal of 1129153213 is 3123519211.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 1009841284 + 119311929 = 31778^2 + 10923^2 .

It is a cyclic number.

It is not a de Polignac number, because 1129153213 - 2²¹ = 1127056061 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (1129153219) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 564576606 + 564576607.

It is an arithmetic number, because the mean of its divisors is an integer number (564576607).

Almost surely, 2^1129153213 is an apocalyptic number.

It is an amenable number.

1129153213 is a deficient number, since it is larger than the sum of its proper divisors (1).

1129153213 is an equidigital number, since it uses as much as digits as its factorization.

1129153213 is an odious number, because the sum of its binary digits is odd.

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

The square root of 1129153213 is about 33602.8750704460. The cubic root of 1129153213 is about 1041.3201962507.

The spelling of 1129153213 in words is "one billion, one hundred twenty-nine million, one hundred fifty-three thousand, two hundred thirteen".