131481525469 has 8 divisors (see below), whose sum is σ = 150565736000. Its totient is φ = 112472598816.

The previous prime is 131481525437. The next prime is 131481525473. The reversal of 131481525469 is 964525184131.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 131481525469 - 2⁵ = 131481525437 is a prime.

It is a super-3 number, since 3×131481525469³ (a number of 34 digits) contains 333 as substring. Note that it is a super-d number also for d = 2.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (131481525169) by changing a digit.

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 7 ways as a sum of consecutive naturals, for example, 18817224 + ... + 18824209.

It is an arithmetic number, because the mean of its divisors is an integer number (18820717000).

Almost surely, 2^131481525469 is an apocalyptic number.

It is an amenable number.

131481525469 is a deficient number, since it is larger than the sum of its proper divisors (19084210531).

131481525469 is an equidigital number, since it uses as much as digits as its factorization.

131481525469 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 37641939.

The product of its digits is 1036800, while the sum is 49.

The spelling of 131481525469 in words is "one hundred thirty-one billion, four hundred eighty-one million, five hundred twenty-five thousand, four hundred sixty-nine".