131451142500 has 180 divisors, whose sum is σ = 416373717760. Its totient is φ = 34955928000.

The previous prime is 131451142457. The next prime is 131451142519. The reversal of 131451142500 is 5241154131.

131451142500 is a `hidden beast` number, since 1 + 3 + 1 + 45 + 114 + 2 + 500 = 666.

It is a tau number, because it is divible by the number of its divisors (180).

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 59 ways as a sum of consecutive naturals, for example, 8249541 + ... + 8265459.

Almost surely, 2^131451142500 is an apocalyptic number.

131451142500 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 131451142500, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (208186858880).

131451142500 is an abundant number, since it is smaller than the sum of its proper divisors (284922575260).

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

131451142500 is a wasteful number, since it uses less digits than its factorization.

131451142500 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 16316 (or 16296 counting only the distinct ones).

The product of its (nonzero) digits is 2400, while the sum is 27.

Adding to 131451142500 its reverse (5241154131), we get a palindrome (136692296631).

The spelling of 131451142500 in words is "one hundred thirty-one billion, four hundred fifty-one million, one hundred forty-two thousand, five hundred".