1331225684 has 24 divisors (see below), whose sum is σ = 2423758848. Its totient is φ = 639061920.

The previous prime is 1331225683. The next prime is 1331225689. The reversal of 1331225684 is 4865221331.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1331225683) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 26519 + ... + 58014.

It is an arithmetic number, because the mean of its divisors is an integer number (100989952).

Almost surely, 2^1331225684 is an apocalyptic number.

It is an amenable number.

1331225684 is a deficient number, since it is larger than the sum of its proper divisors (1092533164).

1331225684 is a wasteful number, since it uses less digits than its factorization.

1331225684 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 84695 (or 84693 counting only the distinct ones).

The product of its digits is 34560, while the sum is 35.

The square root of 1331225684 is about 36485.9655758211. The cubic root of 1331225684 is about 1100.0621683872.

The spelling of 1331225684 in words is "one billion, three hundred thirty-one million, two hundred twenty-five thousand, six hundred eighty-four".