1129161599 has 2 divisors, whose sum is σ = 1129161600. Its totient is φ = 1129161598.

The previous prime is 1129161589. The next prime is 1129161613. The reversal of 1129161599 is 9951619211.

It is a weak prime.

It is an emirp because it is prime and its reverse (9951619211) is a distict prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-1129161599 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (1129161559) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 564580799 + 564580800.

It is an arithmetic number, because the mean of its divisors is an integer number (564580800).

Almost surely, 2^1129161599 is an apocalyptic number.

1129161599 is a deficient number, since it is larger than the sum of its proper divisors (1).

1129161599 is an equidigital number, since it uses as much as digits as its factorization.

1129161599 is an evil number, because the sum of its binary digits is even.

The product of its digits is 43740, while the sum is 44.

The square root of 1129161599 is about 33602.9998512038. Note that the first 3 decimals coincide. The cubic root of 1129161599 is about 1041.3227741381.

The spelling of 1129161599 in words is "one billion, one hundred twenty-nine million, one hundred sixty-one thousand, five hundred ninety-nine".