131512513750 has 40 divisors (see below), whose sum is σ = 259481158200. Its totient is φ = 49836312000.

The previous prime is 131512513729. The next prime is 131512513751. The reversal of 131512513750 is 57315215131.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (131512513751) by changing a digit.

It is a polite number, since it can be written in 19 ways as a sum of consecutive naturals, for example, 2744935 + ... + 2792434.

It is an arithmetic number, because the mean of its divisors is an integer number (6487028955).

Almost surely, 2^131512513750 is an apocalyptic number.

131512513750 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

131512513750 is a deficient number, since it is larger than the sum of its proper divisors (127968644450).

131512513750 is an equidigital number, since it uses as much as digits as its factorization.

131512513750 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 5537410 (or 5537395 counting only the distinct ones).

The product of its (nonzero) digits is 15750, while the sum is 34.

Adding to 131512513750 its reverse (57315215131), we get a palindrome (188827728881).

The spelling of 131512513750 in words is "one hundred thirty-one billion, five hundred twelve million, five hundred thirteen thousand, seven hundred fifty".