1012154412 has 12 divisors (see below), whose sum is σ = 2361693656. Its totient is φ = 337384800.

The previous prime is 1012154411. The next prime is 1012154441. The reversal of 1012154412 is 2144512101.

It is a tau number, because it is divible by the number of its divisors (12).

It is not an unprimeable number, because it can be changed into a prime (1012154411) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 42173089 + ... + 42173112.

Almost surely, 2^1012154412 is an apocalyptic number.

1012154412 is a gapful number since it is divisible by the number (12) formed by its first and last digit.

It is an amenable number.

1012154412 is an abundant number, since it is smaller than the sum of its proper divisors (1349539244).

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

1012154412 is a wasteful number, since it uses less digits than its factorization.

1012154412 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 84346208 (or 84346206 counting only the distinct ones).

The product of its (nonzero) digits is 320, while the sum is 21.

The square root of 1012154412 is about 31814.3742984205. The cubic root of 1012154412 is about 1004.0351661995.

Adding to 1012154412 its reverse (2144512101), we get a palindrome (3156666513).

The spelling of 1012154412 in words is "one billion, twelve million, one hundred fifty-four thousand, four hundred twelve".