1325440514531 has 12 divisors (see below), whose sum is σ = 1563555011760. Its totient is φ = 1120090572720.

The previous prime is 1325440514509. The next prime is 1325440514543. The reversal of 1325440514531 is 1354150445231.

It is a de Polignac number, because none of the positive numbers 2^k-1325440514531 is a prime.

It is a super-2 number, since 2×1325440514531² (a number of 25 digits) contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (1325440514131) 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, 190488116 + ... + 190495073.

It is an arithmetic number, because the mean of its divisors is an integer number (130296250980).

Almost surely, 2^{1325440514531} is an apocalyptic number.

1325440514531 is a deficient number, since it is larger than the sum of its proper divisors (238114497229).

1325440514531 is an equidigital number, since it uses as much as digits as its factorization.

1325440514531 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 380983274 (or 380983267 counting only the distinct ones).

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

Adding to 1325440514531 its reverse (1354150445231), we get a palindrome (2679590959762).

The spelling of 1325440514531 in words is "one trillion, three hundred twenty-five billion, four hundred forty million, five hundred fourteen thousand, five hundred thirty-one".