1531342646453 has 4 divisors (see below), whose sum is σ = 1532775147660. Its totient is φ = 1529910145248.

The previous prime is 1531342646423. The next prime is 1531342646503. The reversal of 1531342646453 is 3546462431351.

It is a happy number.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in 2 ways, for example, as 969716806564 + 561625839889 = 984742^2 + 749417^2 .

It is a cyclic number.

It is not a de Polignac number, because 1531342646453 - 2³⁰ = 1530268904629 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 1531342646398 and 1531342646407.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1531342646423) 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 3 ways as a sum of consecutive naturals, for example, 716249000 + ... + 716251137.

It is an arithmetic number, because the mean of its divisors is an integer number (383193786915).

Almost surely, 2^{1531342646453} is an apocalyptic number.

It is an amenable number.

1531342646453 is a deficient number, since it is larger than the sum of its proper divisors (1432501207).

1531342646453 is a wasteful number, since it uses less digits than its factorization.

1531342646453 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1432501206.

The product of its digits is 3110400, while the sum is 47.

The spelling of 1531342646453 in words is "one trillion, five hundred thirty-one billion, three hundred forty-two million, six hundred forty-six thousand, four hundred fifty-three".