1167029172 has 72 divisors (see below), whose sum is σ = 3114384000. Its totient is φ = 367452288.

The previous prime is 1167029167. The next prime is 1167029179. The reversal of 1167029172 is 2719207611.

It is a happy number.

It is a Harshad number since it is a multiple of its sum of digits (36).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1167029179) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 248704 + ... + 253352.

Almost surely, 2^1167029172 is an apocalyptic number.

1167029172 is a gapful number since it is divisible by the number (12) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 1167029172, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (1557192000).

1167029172 is an abundant number, since it is smaller than the sum of its proper divisors (1947354828).

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

1167029172 is a wasteful number, since it uses less digits than its factorization.

1167029172 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 5045 (or 5040 counting only the distinct ones).

The product of its (nonzero) digits is 10584, while the sum is 36.

The square root of 1167029172 is about 34161.8086757713. The cubic root of 1167029172 is about 1052.8356223203.

The spelling of 1167029172 in words is "one billion, one hundred sixty-seven million, twenty-nine thousand, one hundred seventy-two".