1129550419 has 2 divisors, whose sum is σ = 1129550420. Its totient is φ = 1129550418.

The previous prime is 1129550417. The next prime is 1129550423. The reversal of 1129550419 is 9140559211.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 1129550419 - 2¹ = 1129550417 is a prime.

It is a super-2 number, since 2×1129550419² = 2551768298126151122, which contains 22 as substring.

Together with 1129550417, it forms a pair of twin primes.

It is not a weakly prime, because it can be changed into another prime (1129550417) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 564775209 + 564775210.

It is an arithmetic number, because the mean of its divisors is an integer number (564775210).

Almost surely, 2^1129550419 is an apocalyptic number.

1129550419 is a deficient number, since it is larger than the sum of its proper divisors (1).

1129550419 is an equidigital number, since it uses as much as digits as its factorization.

1129550419 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 16200, while the sum is 37.

The square root of 1129550419 is about 33608.7848486077. The cubic root of 1129550419 is about 1041.4422848314.

It can be divided in two parts, 1129550 and 419, that added together give a square (1129969 = 1063²).

The spelling of 1129550419 in words is "one billion, one hundred twenty-nine million, five hundred fifty thousand, four hundred nineteen".