1011145170 has 64 divisors (see below), whose sum is σ = 2780257536. Its totient is φ = 230549760.

The previous prime is 1011145147. The next prime is 1011145189. The reversal of 1011145170 is 715411101.

1011145170 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a Harshad number since it is a multiple of its sum of digits (21).

It is an unprimeable number.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 82692 + ... + 94128.

It is an arithmetic number, because the mean of its divisors is an integer number (43441524).

Almost surely, 2^1011145170 is an apocalyptic number.

1011145170 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is a practical number, because each smaller number is the sum of distinct divisors of 1011145170, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (1390128768).

1011145170 is an abundant number, since it is smaller than the sum of its proper divisors (1769112366).

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

1011145170 is a wasteful number, since it uses less digits than its factorization.

1011145170 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 11875.

The product of its (nonzero) digits is 140, while the sum is 21.

The square root of 1011145170 is about 31798.5089273066. The cubic root of 1011145170 is about 1003.7013398473.

Adding to 1011145170 its reverse (715411101), we get a palindrome (1726556271).

The spelling of 1011145170 in words is "one billion, eleven million, one hundred forty-five thousand, one hundred seventy".