1005112140 has 48 divisors (see below), whose sum is σ = 2867423328. Its totient is φ = 262971904.

The previous prime is 1005112133. The next prime is 1005112153. The reversal of 1005112140 is 412115001.

It is a happy number.

It is a Harshad number since it is a multiple of its sum of digits (15).

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 15 ways as a sum of consecutive naturals, for example, 154857 + ... + 161216.

It is an arithmetic number, because the mean of its divisors is an integer number (59737986).

Almost surely, 2^1005112140 is an apocalyptic number.

1005112140 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

1005112140 is an abundant number, since it is smaller than the sum of its proper divisors (1862311188).

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

1005112140 is a wasteful number, since it uses less digits than its factorization.

1005112140 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 316138 (or 316136 counting only the distinct ones).

The product of its (nonzero) digits is 40, while the sum is 15.

The square root of 1005112140 is about 31703.5035918745. The cubic root of 1005112140 is about 1001.7011511106.

Adding to 1005112140 its reverse (412115001), we get a palindrome (1417227141).

The spelling of 1005112140 in words is "one billion, five million, one hundred twelve thousand, one hundred forty".