1169128506 has 32 divisors (see below), whose sum is σ = 2877856128. Its totient is φ = 308341440.

The previous prime is 1169128481. The next prime is 1169128511. The reversal of 1169128506 is 6058219611.

It is a super-2 number, since 2×1169128506² = 2733722927083584072, which contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (39).

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 1070085 + ... + 1071176.

It is an arithmetic number, because the mean of its divisors is an integer number (89933004).

Almost surely, 2^1169128506 is an apocalyptic number.

1169128506 is an abundant number, since it is smaller than the sum of its proper divisors (1708727622).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

1169128506 is a wasteful number, since it uses less digits than its factorization.

1169128506 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2141286.

The product of its (nonzero) digits is 25920, while the sum is 39.

The square root of 1169128506 is about 34192.5211998180. The cubic root of 1169128506 is about 1053.4665490285.

The spelling of 1169128506 in words is "one billion, one hundred sixty-nine million, one hundred twenty-eight thousand, five hundred six".