1155107229 has 4 divisors (see below), whose sum is σ = 1540142976. Its totient is φ = 770071484.

The previous prime is 1155107201. The next prime is 1155107231. The reversal of 1155107229 is 9227015511.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is not a de Polignac number, because 1155107229 - 2⁵ = 1155107197 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 1155107229.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1155107029) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 192517869 + ... + 192517874.

It is an arithmetic number, because the mean of its divisors is an integer number (385035744).

Almost surely, 2^1155107229 is an apocalyptic number.

It is an amenable number.

1155107229 is a deficient number, since it is larger than the sum of its proper divisors (385035747).

1155107229 is an equidigital number, since it uses as much as digits as its factorization.

1155107229 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 385035746.

The product of its (nonzero) digits is 6300, while the sum is 33.

The square root of 1155107229 is about 33986.8684788699. The cubic root of 1155107229 is about 1049.2382166147.

The spelling of 1155107229 in words is "one billion, one hundred fifty-five million, one hundred seven thousand, two hundred twenty-nine".