1065731172 has 48 divisors (see below), whose sum is σ = 2747136000. Its totient is φ = 318857760.

The previous prime is 1065731171. The next prime is 1065731189. The reversal of 1065731172 is 2711375601.

1065731172 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a super-2 number, since 2×1065731172² = 2271565861944987168, which contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (33).

It is not an unprimeable number, because it can be changed into a prime (1065731171) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 40672 + ... + 61527.

It is an arithmetic number, because the mean of its divisors is an integer number (57232000).

Almost surely, 2^1065731172 is an apocalyptic number.

1065731172 is a gapful number since it is divisible by the number (12) formed by its first and last digit.

It is an amenable number.

1065731172 is an abundant number, since it is smaller than the sum of its proper divisors (1681404828).

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

1065731172 is a wasteful number, since it uses less digits than its factorization.

1065731172 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 102296 (or 102294 counting only the distinct ones).

The product of its (nonzero) digits is 8820, while the sum is 33.

The square root of 1065731172 is about 32645.5383168971. The cubic root of 1065731172 is about 1021.4471231652.

It can be divided in two parts, 1065 and 731172, that added together give a palindrome (732237).

The spelling of 1065731172 in words is "one billion, sixty-five million, seven hundred thirty-one thousand, one hundred seventy-two".