131520252443 has 8 divisors (see below), whose sum is σ = 132050662320. Its totient is φ = 130990285440.

The previous prime is 131520252401. The next prime is 131520252467. The reversal of 131520252443 is 344252025131.

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 131520252443 - 2⁶ = 131520252379 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (131520257443) 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, 490988 + ... + 710006.

It is an arithmetic number, because the mean of its divisors is an integer number (16506332790).

Almost surely, 2^131520252443 is an apocalyptic number.

131520252443 is a deficient number, since it is larger than the sum of its proper divisors (530409877).

131520252443 is a wasteful number, since it uses less digits than its factorization.

131520252443 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 221437.

The product of its (nonzero) digits is 28800, while the sum is 32.

Adding to 131520252443 its reverse (344252025131), we get a palindrome (475772277574).

The spelling of 131520252443 in words is "one hundred thirty-one billion, five hundred twenty million, two hundred fifty-two thousand, four hundred forty-three".