1000140012 has 36 divisors (see below), whose sum is σ = 2661193080. Its totient is φ = 315833472.

The previous prime is 1000139983. The next prime is 1000140013. The reversal of 1000140012 is 2100410001.

It is a happy number.

It is a tau number, because it is divible by the number of its divisors (36).

It is a Harshad number since it is a multiple of its sum of digits (9).

It is a junction number, because it is equal to n+sod(n) for n = 1000139976 and 1000140003.

It is not an unprimeable number, because it can be changed into a prime (1000140013) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 730413 + ... + 731780.

It is an arithmetic number, because the mean of its divisors is an integer number (73922030).

Almost surely, 2^1000140012 is an apocalyptic number.

1000140012 is a gapful number since it is divisible by the number (12) formed by its first and last digit.

It is an amenable number.

1000140012 is an abundant number, since it is smaller than the sum of its proper divisors (1661053068).

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

1000140012 is a wasteful number, since it uses less digits than its factorization.

1000140012 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1462222 (or 1462217 counting only the distinct ones).

The product of its (nonzero) digits is 8, while the sum is 9.

The square root of 1000140012 is about 31624.9903082989. The cubic root of 1000140012 is about 1000.0466684887.

Adding to 1000140012 its reverse (2100410001), we get a palindrome (3100550013).

The spelling of 1000140012 in words is "one billion, one hundred forty thousand, twelve".