131545434450 has 48 divisors (see below), whose sum is σ = 333819500256. Its totient is φ = 34262995200.

The previous prime is 131545434409. The next prime is 131545434451. The reversal of 131545434450 is 54434545131.

It is a junction number, because it is equal to n+sod(n) for n = 131545434399 and 131545434408.

It is not an unprimeable number, because it can be changed into a prime (131545434451) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 10190871 + ... + 10203770.

It is an arithmetic number, because the mean of its divisors is an integer number (6954572922).

Almost surely, 2^131545434450 is an apocalyptic number.

131545434450 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

131545434450 is an abundant number, since it is smaller than the sum of its proper divisors (202274065806).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

131545434450 is a wasteful number, since it uses less digits than its factorization.

131545434450 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 20394699 (or 20394694 counting only the distinct ones).

The product of its (nonzero) digits is 288000, while the sum is 39.

Adding to 131545434450 its reverse (54434545131), we get a palindrome (185979979581).

The spelling of 131545434450 in words is "one hundred thirty-one billion, five hundred forty-five million, four hundred thirty-four thousand, four hundred fifty".