1331405450125 has 8 divisors (see below), whose sum is σ = 1661594001912. Its totient is φ = 1065124360000.

The previous prime is 1331405450119. The next prime is 1331405450129. The reversal of 1331405450125 is 5210545041331.

It can be written as a sum of positive squares in 4 ways, for example, as 37751712804 + 1293653737321 = 194298^2 + 1137389^2 .

It is not a de Polignac number, because 1331405450125 - 2⁵ = 1331405450093 is a prime.

It is a hoax number, since the sum of its digits (34) coincides with the sum of the digits of its distinct prime factors.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1331405450129) 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, 5325621676 + ... + 5325621925.

It is an arithmetic number, because the mean of its divisors is an integer number (207699250239).

Almost surely, 2^{1331405450125} is an apocalyptic number.

It is an amenable number.

1331405450125 is a deficient number, since it is larger than the sum of its proper divisors (330188551787).

1331405450125 is an equidigital number, since it uses as much as digits as its factorization.

1331405450125 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 10651243616 (or 10651243606 counting only the distinct ones).

The product of its (nonzero) digits is 36000, while the sum is 34.

The spelling of 1331405450125 in words is "one trillion, three hundred thirty-one billion, four hundred five million, four hundred fifty thousand, one hundred twenty-five".