1031171472 has 120 divisors (see below), whose sum is σ = 3005425696. Its totient is φ = 342268416.

The previous prime is 1031171467. The next prime is 1031171483. The reversal of 1031171472 is 2741711301.

It is a super-5 number, since 5×1031171472⁵ (a number of 46 digits) contains 55555 as substring.

It is a Harshad number since it is a multiple of its sum of digits (27).

It is a congruent number.

It is an unprimeable number.

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, 1309863 + ... + 1310649.

Almost surely, 2^1031171472 is an apocalyptic number.

1031171472 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 1031171472, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (1502712848).

1031171472 is an abundant number, since it is smaller than the sum of its proper divisors (1974254224).

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

1031171472 is an equidigital number, since it uses as much as digits as its factorization.

1031171472 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1147 (or 1129 counting only the distinct ones).

The product of its (nonzero) digits is 1176, while the sum is 27.

The square root of 1031171472 is about 32111.8587440839. The cubic root of 1031171472 is about 1010.2843600200.

Adding to 1031171472 its reverse (2741711301), we get a palindrome (3772882773).

The spelling of 1031171472 in words is "one billion, thirty-one million, one hundred seventy-one thousand, four hundred seventy-two".