1012266138 has 32 divisors (see below), whose sum is σ = 2233449792. Its totient is φ = 303868800.

The previous prime is 1012266113. The next prime is 1012266149. The reversal of 1012266138 is 8316622101.

It is a Curzon number.

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, 155068 + ... + 161463.

It is an arithmetic number, because the mean of its divisors is an integer number (69795306).

Almost surely, 2^1012266138 is an apocalyptic number.

1012266138 is an abundant number, since it is smaller than the sum of its proper divisors (1221183654).

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

1012266138 is a wasteful number, since it uses less digits than its factorization.

1012266138 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 316590.

The product of its (nonzero) digits is 3456, while the sum is 30.

The square root of 1012266138 is about 31816.1301543730. The cubic root of 1012266138 is about 1004.0721080943.

Adding to 1012266138 its reverse (8316622101), we get a palindrome (9328888239).

The spelling of 1012266138 in words is "one billion, twelve million, two hundred sixty-six thousand, one hundred thirty-eight".