1129270379 has 2 divisors, whose sum is σ = 1129270380. Its totient is φ = 1129270378.

The previous prime is 1129270277. The next prime is 1129270381. The reversal of 1129270379 is 9730729211.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 1129270379 - 2²⁴ = 1112493163 is a prime.

Together with 1129270381, it forms a pair of twin primes.

It is a Chen prime.

It is not a weakly prime, because it can be changed into another prime (1129270579) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 564635189 + 564635190.

It is an arithmetic number, because the mean of its divisors is an integer number (564635190).

Almost surely, 2^1129270379 is an apocalyptic number.

1129270379 is a deficient number, since it is larger than the sum of its proper divisors (1).

1129270379 is an equidigital number, since it uses as much as digits as its factorization.

1129270379 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 47628, while the sum is 41.

The square root of 1129270379 is about 33604.6184177116. The cubic root of 1129270379 is about 1041.3562123558.

The spelling of 1129270379 in words is "one billion, one hundred twenty-nine million, two hundred seventy thousand, three hundred seventy-nine".