1135223172 has 36 divisors (see below), whose sum is σ = 3020624880. Its totient is φ = 358491312.

The previous prime is 1135223171. The next prime is 1135223249. The reversal of 1135223172 is 2713225311.

1135223172 is a `hidden beast` number, since 11 + 352 + 231 + 72 = 666.

It is a tau number, because it is divible by the number of its divisors (36).

It is not an unprimeable number, because it can be changed into a prime (1135223171) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 829158 + ... + 830525.

Almost surely, 2^1135223172 is an apocalyptic number.

1135223172 is a gapful number since it is divisible by the number (12) formed by its first and last digit.

It is an amenable number.

1135223172 is an abundant number, since it is smaller than the sum of its proper divisors (1885401708).

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

1135223172 is a wasteful number, since it uses less digits than its factorization.

1135223172 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1659712 (or 1659707 counting only the distinct ones).

The product of its digits is 2520, while the sum is 27.

The square root of 1135223172 is about 33693.0730566388. The cubic root of 1135223172 is about 1043.1827951126.

Adding to 1135223172 its reverse (2713225311), we get a palindrome (3848448483).

The spelling of 1135223172 in words is "one billion, one hundred thirty-five million, two hundred twenty-three thousand, one hundred seventy-two".