1331442825 has 12 divisors (see below), whose sum is σ = 2201318928. Its totient is φ = 710102800.

The previous prime is 1331442823. The next prime is 1331442829. The reversal of 1331442825 is 5282441331.

It is not a de Polignac number, because 1331442825 - 2¹ = 1331442823 is a prime.

It is not an unprimeable number, because it can be changed into a prime (1331442823) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 8876211 + ... + 8876360.

It is an arithmetic number, because the mean of its divisors is an integer number (183443244).

Almost surely, 2^1331442825 is an apocalyptic number.

1331442825 is a gapful number since it is divisible by the number (15) formed by its first and last digit.

It is an amenable number.

1331442825 is a deficient number, since it is larger than the sum of its proper divisors (869876103).

1331442825 is a wasteful number, since it uses less digits than its factorization.

1331442825 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 17752584 (or 17752579 counting only the distinct ones).

The product of its digits is 23040, while the sum is 33.

The square root of 1331442825 is about 36488.9411328967. The cubic root of 1331442825 is about 1100.1219768319.

The spelling of 1331442825 in words is "one billion, three hundred thirty-one million, four hundred forty-two thousand, eight hundred twenty-five".