1012261606 has 4 divisors (see below), whose sum is σ = 1518392412. Its totient is φ = 506130802.

The previous prime is 1012261603. The next prime is 1012261619. The reversal of 1012261606 is 6061622101.

It is a semiprime because it is the product of two primes.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1012261603) by changing a digit.

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 as a sum of consecutive naturals, namely, 253065400 + ... + 253065403.

It is an arithmetic number, because the mean of its divisors is an integer number (379598103).

Almost surely, 2^1012261606 is an apocalyptic number.

1012261606 is a deficient number, since it is larger than the sum of its proper divisors (506130806).

1012261606 is an equidigital number, since it uses as much as digits as its factorization.

1012261606 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 506130805.

The product of its (nonzero) digits is 864, while the sum is 25.

The square root of 1012261606 is about 31816.0589325579. The cubic root of 1012261606 is about 1004.0706096539.

Adding to 1012261606 its reverse (6061622101), we get a palindrome (7073883707).

The spelling of 1012261606 in words is "one billion, twelve million, two hundred sixty-one thousand, six hundred six".