1056171018 has 16 divisors (see below), whose sum is σ = 2414105280. Its totient is φ = 301763136.

The previous prime is 1056171013. The next prime is 1056171047. The reversal of 1056171018 is 8101716501.

It is a super-2 number, since 2×1056171018² = 2230994438526312648, which contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (1056171013) 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 7 ways as a sum of consecutive naturals, for example, 12573423 + ... + 12573506.

It is an arithmetic number, because the mean of its divisors is an integer number (150881580).

Almost surely, 2^1056171018 is an apocalyptic number.

1056171018 is an abundant number, since it is smaller than the sum of its proper divisors (1357934262).

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

1056171018 is a wasteful number, since it uses less digits than its factorization.

1056171018 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 25146941.

The product of its (nonzero) digits is 1680, while the sum is 30.

The square root of 1056171018 is about 32498.7848695917. The cubic root of 1056171018 is about 1018.3836433551.

Adding to 1056171018 its reverse (8101716501), we get a palindrome (9157887519).

The spelling of 1056171018 in words is "one billion, fifty-six million, one hundred seventy-one thousand, eighteen".