131025435493 has 8 divisors (see below), whose sum is σ = 134091233408. Its totient is φ = 127960487424.

The previous prime is 131025435491. The next prime is 131025435517. The reversal of 131025435493 is 394534520131.

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 131025435493 - 2¹ = 131025435491 is a prime.

It is a super-3 number, since 3×131025435493³ (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 (131025435491) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 104980 + ... + 522562.

It is an arithmetic number, because the mean of its divisors is an integer number (16761404176).

Almost surely, 2^131025435493 is an apocalyptic number.

It is an amenable number.

131025435493 is a deficient number, since it is larger than the sum of its proper divisors (3065797915).

131025435493 is an equidigital number, since it uses as much as digits as its factorization.

131025435493 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 424923.

The product of its (nonzero) digits is 194400, while the sum is 40.

The spelling of 131025435493 in words is "one hundred thirty-one billion, twenty-five million, four hundred thirty-five thousand, four hundred ninety-three".