231532501415545 has 16 divisors (see below), whose sum is σ = 303097436952768. Its totient is φ = 168387082539840.

The previous prime is 231532501415519. The next prime is 231532501415599. The reversal of 231532501415545 is 545514105235132.

It is not a de Polignac number, because 231532501415545 - 2⁵ = 231532501415513 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 231532501415495 and 231532501415504.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 62215507 + ... + 65831863.

It is an arithmetic number, because the mean of its divisors is an integer number (18943589809548).

Almost surely, 2^{231532501415545} is an apocalyptic number.

It is an amenable number.

231532501415545 is a deficient number, since it is larger than the sum of its proper divisors (71564935537223).

231532501415545 is a wasteful number, since it uses less digits than its factorization.

231532501415545 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4780440.

The product of its (nonzero) digits is 1800000, while the sum is 46.

The spelling of 231532501415545 in words is "two hundred thirty-one trillion, five hundred thirty-two billion, five hundred one million, four hundred fifteen thousand, five hundred forty-five".