1153111729 has 48 divisors (see below), whose sum is σ = 1545779200. Its totient is φ = 839535840.

The previous prime is 1153111727. The next prime is 1153111769. The reversal of 1153111729 is 9271113511.

It is not a de Polignac number, because 1153111729 - 2¹ = 1153111727 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 1153111729.

It is not an unprimeable number, because it can be changed into a prime (1153111727) by changing a digit.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 1270894 + ... + 1271800.

Almost surely, 2^1153111729 is an apocalyptic number.

1153111729 is a gapful number since it is divisible by the number (19) formed by its first and last digit.

It is an amenable number.

1153111729 is a deficient number, since it is larger than the sum of its proper divisors (392667471).

1153111729 is a wasteful number, since it uses less digits than its factorization.

1153111729 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1034 (or 1023 counting only the distinct ones).

The product of its digits is 1890, while the sum is 31.

The square root of 1153111729 is about 33957.4988625488. The cubic root of 1153111729 is about 1048.6336661878.

The spelling of 1153111729 in words is "one billion, one hundred fifty-three million, one hundred eleven thousand, seven hundred twenty-nine".