1160000172 has 36 divisors (see below), whose sum is σ = 3011475376. Its totient is φ = 376215840.

The previous prime is 1160000159. The next prime is 1160000173. The reversal of 1160000172 is 2710000611.

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

It is a Harshad number since it is a multiple of its sum of digits (18).

It is not an unprimeable number, because it can be changed into a prime (1160000173) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 434104 + ... + 436767.

Almost surely, 2^1160000172 is an apocalyptic number.

1160000172 is a gapful number since it is divisible by the number (12) formed by its first and last digit.

It is an amenable number.

1160000172 is an abundant number, since it is smaller than the sum of its proper divisors (1851475204).

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

1160000172 is a wasteful number, since it uses less digits than its factorization.

1160000172 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 870918 (or 870913 counting only the distinct ones).

The product of its (nonzero) digits is 84, while the sum is 18.

The square root of 1160000172 is about 34058.7752568997. The cubic root of 1160000172 is about 1050.7176264306.

Adding to 1160000172 its reverse (2710000611), we get a palindrome (3870000783).

The spelling of 1160000172 in words is "one billion, one hundred sixty million, one hundred seventy-two", and thus it is an aban number.