1012146642 has 48 divisors (see below), whose sum is σ = 2416622208. Its totient is φ = 304184160.

The previous prime is 1012146617. The next prime is 1012146649. The reversal of 1012146642 is 2466412101.

1012146642 is a `hidden beast` number, since 1 + 0 + 1 + 2 + 14 + 6 + 642 = 666.

It is not an unprimeable number, because it can be changed into a prime (1012146649) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 40234 + ... + 60357.

It is an arithmetic number, because the mean of its divisors is an integer number (50346296).

Almost surely, 2^1012146642 is an apocalyptic number.

1012146642 is an abundant number, since it is smaller than the sum of its proper divisors (1404475566).

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

1012146642 is a wasteful number, since it uses less digits than its factorization.

1012146642 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 100655 (or 100652 counting only the distinct ones).

The product of its (nonzero) digits is 2304, while the sum is 27.

The square root of 1012146642 is about 31814.2521835733. The cubic root of 1012146642 is about 1004.0325969692.

Adding to 1012146642 its reverse (2466412101), we get a palindrome (3478558743).

The spelling of 1012146642 in words is "one billion, twelve million, one hundred forty-six thousand, six hundred forty-two".