1331225650 has 48 divisors (see below), whose sum is σ = 2538158976. Its totient is φ = 519225920.

The previous prime is 1331225617. The next prime is 1331225659. The reversal of 1331225650 is 565221331.

It is not an unprimeable number, because it can be changed into a prime (1331225659) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 744057 + ... + 745843.

It is an arithmetic number, because the mean of its divisors is an integer number (52878312).

Almost surely, 2^1331225650 is an apocalyptic number.

1331225650 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

1331225650 is a deficient number, since it is larger than the sum of its proper divisors (1206933326).

1331225650 is a wasteful number, since it uses less digits than its factorization.

1331225650 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2163 (or 2158 counting only the distinct ones).

The product of its (nonzero) digits is 5400, while the sum is 28.

The square root of 1331225650 is about 36485.9651098885. The cubic root of 1331225650 is about 1100.0621590219.

Adding to 1331225650 its reverse (565221331), we get a palindrome (1896446981).

It can be divided in two parts, 1331 and 225650, that added together give a cube (226981 = 61³).

The spelling of 1331225650 in words is "one billion, three hundred thirty-one million, two hundred twenty-five thousand, six hundred fifty".