1431540531425 has 12 divisors (see below), whose sum is σ = 1779209834220. Its totient is φ = 1142587537920.

The previous prime is 1431540531409. The next prime is 1431540531427. The reversal of 1431540531425 is 5241350451341.

It can be written as a sum of positive squares in 6 ways, for example, as 131888090896 + 1299652440529 = 363164^2 + 1140023^2 .

It is not a de Polignac number, because 1431540531425 - 2⁴ = 1431540531409 is a prime.

It is a super-2 number, since 2×1431540531425² (a number of 25 digits) contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (1431540531427) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 66111140 + ... + 66132789.

It is an arithmetic number, because the mean of its divisors is an integer number (148267486185).

Almost surely, 2^{1431540531425} is an apocalyptic number.

It is an amenable number.

1431540531425 is a deficient number, since it is larger than the sum of its proper divisors (347669302795).

1431540531425 is a wasteful number, since it uses less digits than its factorization.

1431540531425 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 132244372 (or 132244367 counting only the distinct ones).

The product of its (nonzero) digits is 144000, while the sum is 38.

Adding to 1431540531425 its reverse (5241350451341), we get a palindrome (6672890982766).

The spelling of 1431540531425 in words is "one trillion, four hundred thirty-one billion, five hundred forty million, five hundred thirty-one thousand, four hundred twenty-five".